Ich have auf eine geringe Vermutung eine gefährliche Reise gewagt und erblicke schon die Vorgebirge neuer Länder. Diejenigen, welche die Herzhaftigheit haben die Untersuchung fortzusetzen, werden sie betreten.
Upon a slight conjecture [on the origin of the solar system] I have ventured on a dangerous journey and I already behold the foothills of new lands. Those who have the courage to continue the search will set foot on them.

Sic Itur Ad Astra
So we go to the stars.

Although I have several agents who know the Niam-Niam country, I did not dare to make anything of their unreliable statements before I could orient myself. These Nubians are unpredictable to a high degree, they have a very poor memory for names and practically no human idea of the points of the compass; the agents of the merchants of Khartoum who are entrusted with such great journeys are to the last man absolute liars, braggarts and habitual fibbers.

Although I was four years at the University [of Wisconsin], I did not take the regular course of studies, but instead picked out what I thought would be most useful to me, particularly chemistry, which opened a new world, mathematics and physics, a little Greek and Latin, botany and and geology. I was far from satisfied with what I had learned, and should have stayed longer.
[Enrolled in Feb 1861, left in 1863 without completing a degree, and began his first botanical foot journey.]

An involuntary return to the point of departure is, without doubt, the most disturbing of all journeys.

At the origin, the [space travel] pioneers of the greatest adventure of all times were motivated by the drive to explore, by the pure spirit of conquest, by the lofty desire to open up new fields to human genius. … From their exceptional journeys, they all came back with the revelation of beauty. Beauty of the black sky, beauty and variety of our planet, beauty of the Earth seen from the Moon, girdled by a scintillating belt of equatorial thunderstorms. They all emphasize that our planet is one, that borderlines are artificial, that humankind is one single community on board spaceship Earth. They all insist that this fragile gem is at our mercy and that we must all endeavor to protect it.

By Emerson scientific conceptions are continually transmuted into the finer forms and warmer hues of an ideal world. Our present theme is touched upon in the lines—
“The journeying atoms, primordial wholes
Firmly draw, firmly drive by their animate poles.”

Education is a journey, not a destination.

Every instant she commences an immense journey, and every instant she has reached her goal.

Finally I got to carbon, and as you all know, in the case of carbon the reaction works out beautifully. One goes through six reactions, and at the end one comes back to carbon. In the process one has made four hydrogen atoms into one of helium. The theory, of course, was not made on the railway train from Washington to Ithaca … It didn’t take very long, it took about six weeks, but not even the Trans-Siberian railroad [has] taken that long for its journey.

From my earliest childhood I nourished and cherished the desire to make a creditable journey in a new country, and write such a respectable account of its natural history as should give me a niche amongst the scientific explorers of the globe I inhabit, and hand my name down as a useful contributor of original matter.

His Majesty has, with great skill, constructed a cart, containing a corn mill, which is worked by the motion of the carriage. He has also contrived a carriage of such a magnitude as to contain several apartments, with a hot bath; and it is drawn by a single elephant. This movable bath is extremely useful, and refreshing on a journey. … He has also invented several hydraulic machines, which are worked by oxen. The pulleys and wheels of some of them are so adjusted that a single ox will at once draw water out of two wells, and at the same time turn a millstone.

I believe a blade of grass is no less than the journey-work of the stars.

I shall collect plants and fossils, and with the best of instruments make astronomic observations. Yet this is not the main purpose of my journey. I shall endeavor to find out how nature's forces act upon one another, and in what manner the geographic environment exerts its influence on animals and plants. In short, I must find out about the harmony in nature.

I wandered away on a glorious botanical and geological excursion, which has lasted nearly fifty years and is not yet completed, always happy and free, poor and rich, without thought of a diploma or of making a name, urged on and on through endless, inspiring Godful beauty.
[Shortly after leaving university in 1863, without completing a degree, at age 25, he began his first botanical foot journey along the Wisconsin River to the Mississippi.]

I was a few miles south of Louisville when I planned my journey. I spread out my map under a tree and made up my mind to go through Kentucky, Tennessee, and Georgia to Florida, thence to Cuba, thence to some part of South America; but it will be only a hasty walk. I am thankful, however, for so much.

If seeds in the black Earth can turn into such beautiful roses what might not the heart of man become in its long journey towards the stars?

It is good to have an end to journey towards, but it is the journey that matters, in the end.

Life is a journey, but don’t worry, you’ll find a parking spot at the end.

Mankind is drawn to the heavens for the same reason we were once drawn into unknown lands and across the open sea. We choose to explore space because doing so improves our lives, and lifts our national spirit. So let us continue the journey.

Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost. Rigour should be a signal to the historian that the maps have been made, and the real explorers have gone elsewhere.

Moreover, I am now well-informed about that part of the country to be traversed, as I can acquire the most exact information from the Nubian leaders, who are truly well-versed in regional knowledge, and thus supported in my route I could determine positions with the greatest certainty. I could not do this before, as one only learns how to interpret the statements of the Nubians by undertaking such a journey.

My father, and the father of my father, pitched their tents here before me. … For twelve hundred years have the true believers—and, praise be to God! all true wisdom is with them alone—been settled in this country, and not one of them ever heard of a palace underground. Neither did they who went before them. But lo! here comes a Frank from many days’ journey off, and he walks up to the very place, and he takes a stick … and makes a line here, and makes a line there. Here, says he, is the palace; there, says he, is the gate; and he shows us what has been all our lives beneath our feet, without our having known anything about it. Wonderful! Wonderful! Is it by books, is it by magic, is it by your prophets, that you have learnt wisdom?

My thoughts … are like persons met upon a journey; I think them very agreeable at first but soon find, as a rule, that I am tired of them.

Newton’s theory is the circle of generalization which includes all the others [as Kepler’s laws, Ptolemy’s theory, etc.];—the highest point of the inductive ascent;—the catastrophe of the philosophic drama to which Plato had prologized;— the point to which men’s minds had been journeying for two thousand years.

Nothing can be more improving to a young naturalist, than a journey in a distant country.

Once you have travelled, the voyage never ends, but is played out over and over again in the quietest chambers. The mind can never break off from the journey.

One of the gladdest moments of human life, methinks, is the departure upon a distant journey into unknown lands. Shaking off with one mighty effort the fetters of habit, the leaden weight of routine, the cloak of many cares and the slavery of home, man feel once more happy.

Perhaps I can best describe my experience of doing mathematics in terms of a journey through a dark unexplored mansion. You enter the first room of the mansion and it’s completely dark. You stumble around bumping into the furniture, but gradually you learn where each piece of furniture is. Finally, after six months or so, you find the light switch, you turn it on, and suddenly it’s all illuminated. You can see exactly where you were. Then you move into the next room and spend another six months in the dark. So each of these breakthroughs, while sometimes they’re momentary, sometimes over a period of a day or two, they are the culmination of—and couldn’t exist without—the many months of stumbling around in the dark that proceed them.

Science and art, or by the same token, poetry and prose differ from one another like a journey and an excursion. The purpose of the journey is its goal, the purpose of an excursion is the process.

Since Britain lies far north toward the pole, the nights are short in summer, and at midnight it is hard to tell whether the evening twilight still lingers or whether dawn is approaching, since the sun at night passes not far below the earth in its journey round the north back to the east. Consequently the days are long in summer, as are the nights in winter when the sun withdraws into African regions.

Success is a journey, not a destination.

The astronomer who studies the motion of the stars is surely like a blind man who, with only a staff [mathematics] to guide him, must make a great, endless, hazardous journey that winds through innumerable desolate places. What will be the result? Proceeding anxiously for a while and groping his way with his staff, he will at some time, leaning upon it, cry out in despair to Heaven, Earth and all the Gods to aid him in his misery.

The chairs and tables around us which broadcast to us incessantly those signals which affect our sight and touch cannot in their nature be like unto the signals or to the sensations which the signals awake at the end of their journey.

The Columbia is lost; there are no survivors. … In an age when space flight has come to seem almost routine, it is easy to overlook the dangers of travel by rocket, and the difficulties of navigating the fierce outer atmosphere of the Earth. These astronauts knew the dangers, and they faced them willingly, knowing they had a high and noble purpose in life. Because of their courage and daring idealism, we will miss them all the more. … The cause in which they died will continue. Mankind is led into the darkness beyond our world by the inspiration of discovery and the longing to understand. Our journey into space will go on.

The engineer is concerned to travel from the abstract to the concrete. He begins with an idea and ends with an object. He journeys from theory to practice. The scientist’s job is the precise opposite. He explores nature with his telescopes or microscopes, or much more sophisticated techniques, and feeds into a computer what he finds or sees in an attempt to define mathematically its significance and relationships. He travels from the real to the symbolic, from the concrete to the abstract. The scientist and the engineer are the mirror image of each other.

The experiences are so innumerable and varied, that the journey appears to be interminable and the Destination is ever out of sight. But the wonder of it is, when at last you reach your Destination you find that you had never travelled at all! It was a journey from here to Here.

The journeying atoms,
Primordial wholes
Firmly draw, firmly drive
By their animate poles.

The old Sussex tortoise, that I have mentioned to you so often, is become my property. I dug it out of its winter dormitory in March last, when it was enough awakened to express its resentments by hissing; and, packing it in a box with earth, carried it eighty miles in post-chaises. The rattle and hurry of the journey so perfectly roused it that, when I turned it out on a border, it walked twice down to the bottom of my garden; however, in the evening, the weather being cold, it buried it-self in the loose mound, and continues still concealed … When one reflects on the state of this strange being, it is a matter of wonder to find that Providence should bestow such a profusion of days, such a seeming waste of longevity, on a reptile that appears to relish it so little as to squander more than two-thirds of its existence in joyless stupor, and be lost to all sensation for months together in the profoundest of slumbers.

The whole strenuous intellectual work of an industrious research worker would appear, after all, in vain and hopeless, if he were not occasionally through some striking facts to find that he had, at the end of all his criss-cross journeys, at last accomplished at least one step which was conclusively nearer the truth.

Three thousand stadia from the earth to the moon,—the first station. From thence to the sun about five hundred parasangs. ... Marvel not, my comrade, if I appear talking to you on super-terrestrial and aerial topics. The long and the short of the matter is that I am running over the order of a Journey I have lately made. ... I have travelled in the stars.
One of the earliest examples of what might be regarded as science fiction.

We are all travelers who are journeying … not knowing where the next day of our life is going to take us. We have no understanding of the surprises that are in store for us. Steadily we will know, understand and decipher and then it will all start to make sense. Until then keep travelling.

We are not here to abuse and exploit other creatures. We are here to live and help live. Every meal is part of the journey.

We have reached the end of our journey into the depths of matter. We have sought for firm ground and found none. The deeper we penetrate, the more restless becomes the universe…: all is rushing about and vibrating in a wild dance.

We know that there are many animals on this continent not found in the Old World. These must have been carried from here to the ark, and then brought back afterwards. Were the peccary, armadillo, ant-eater, sloth, agouti, vampire-bat, marmoset, howling and prehensile-tailed monkey, the raccoon and muskrat carried by the angels from America to Asia? How did they get there? Did the polar bear leave his field of ice and journey toward the tropics? How did he know where the ark was? Did the kangaroo swim or jump from Australia to Asia? Did the giraffe, hippopotamus, antelope and orang-outang journey from Africa in search of the ark? Can absurdities go farther than this?

We must go beyond textbooks, go out into the bypaths and untrodden depths of the wilderness and travel and explore and tell the world the glories of our journey.

When asked what it was like to set about proving something, the mathematician likened proving a theorem to seeing the peak of a mountain and trying to climb to the top. One establishes a base camp and begins scaling the mountain’s sheer face, encountering obstacles at every turn, often retracing one’s steps and struggling every foot of the journey. Finally when the top is reached, one stands examining the peak, taking in the view of the surrounding countryside and then noting the automobile road up the other side!

When one ponders on the tremendous journey of evolution over the past three billion years or so, the prodigious wealth of structures it has engendered, and the extraordinarily effective teleonomic performances of living beings from bacteria to man, one may well find oneself beginning to doubt again whether all this could conceiveably be the product of an enormous lottery presided over by natural selection, blindly picking the rare winners from among numbers drawn at random. [Nevertheless,] a detailed review of the accumulated modern evidence [shows] that this conception alone is compatible with the facts.