Four Quotes (6 quotes)
Chiodo scaccia chiodo, ma quattro chiodi fanno una croce.
One nail drives out another, but four nails make a cross.
One nail drives out another, but four nails make a cross.
His final comments on 16th August 1950, just a few days before his death, refer to his estimate of his own work. In Il mestiere di vivere (1947), 361. Translated as The Burning Brand: Diaries 1935-1950 (1961), 19.
As Bertrand Russell once wrote, two plus two is four even in the interior of the sun.
In When You Were a Tadpole and I Was a Fish: And Other Speculations About This and That (2009), 124.
But that which will excite the greatest astonishment by far, and which indeed especially moved me to call the attention of all astronomers and philosophers, is this: namely, that I have observed four planets, neither known nor observed by any one of the astronomers before my time, which have their orbits round a certain bright star [Jupiter], one of those previously known, like Venus or Mercury round the sun, and are sometimes in front of it, sometimes behind it, though they never depart from it beyond certain limits. All of which facts were discovered and observed a few days ago by the help of a telescope devised by me, through God’s grace first enlightening my mind.
In pamphlet, The Sidereal Messenger (1610), reprinted in The Sidereal Messenger of Galileo Galilei: And a Part of the Preface to the Preface to Kepler's Dioptrics Containing the Original Account of Galileo's Astronomical Discoveries (1880), 9.
If the bee disappeared off the face of the earth, man would only have four years left to live.
This is regarded as probably NOT a quote by Einstein.
This is regarded as probably NOT a quote by Einstein.
This is something Einstein most probably did NOT say! Since scholarly search for this quote has thus far found no reliable source for it, it must at least be classed as undetermined. Furthermore, since its first appearance is 40 years after his death, in dubious context for authenticity, it deserves to be regarded as spurious. See snopes.com article. It is added here to serve as a caution to the reader.
Medicine rests upon four pillars—philosophy, astronomy, alchemy, and ethics. The first pillar is the philosophical knowledge of earth and water; the second, astronomy, supplies its full understanding of that which is of fiery and airy nature; the third is an adequate explanation of the properties of all the four elements—that is to say, of the whole cosmos—and an introduction into the art of their transformations; and finally, the fourth shows the physician those virtues which must stay with him up until his death, and it should support and complete the three other pillars.
Vas Buch Paragranum (c.1529-30), in J. Jacobi (ed.), Paracelsus: Selected Writings (1951), 133-4.
The equation eπi = -1 has been called the eutectic point of mathematics, for no matter how you boil down and explain this equation, which relates four of the most remarkable numbers of mathematics, it still has a certain mystery about it that cannot be explained away.
In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion.
(1987) -- 
