TODAY IN SCIENCE HISTORY ®  •  TODAYINSCI ®
Celebrating 24 Years on the Web
Find science on or your birthday

Today in Science History - Quickie Quiz
Who said: “Politics is more difficult than physics.”
more quiz questions >>
Home > Category Index for Science Quotations > Category Index T > Category: Thirty

Thirty Quotes (6 quotes)

[About any invention] (1) everything that’s already in the world when you’re born is just normal; (2) anything that gets invented between then and before you turn thirty is incredibly exciting and creative and with any luck you can make a career out of it; (3) anything that gets invented after you’re thirty is against the natural order of things and the beginning of the end of civilisation as we know it until it’s been around for about ten years when it gradually turns out to be alright really.
In News Review section, Sunday Times (29 Aug 1999).
Science quotes on:  |  Against (332)  |  Age (509)  |  Already (226)  |  Beginning (312)  |  Birth (154)  |  Career (86)  |  Civilization (220)  |  Creative (144)  |  End (603)  |  Everything (489)  |  Exciting (50)  |  Gradual (30)  |  Gradually (102)  |  Incredible (43)  |  Invention (400)  |  Know (1538)  |  Luck (44)  |  Natural (810)  |  Natural Order (6)  |  Normal (29)  |  Order (638)  |  Thing (1914)  |  Turn (454)  |  World (1850)  |  Year (963)

At the planet’s very heart lies a solid rocky core, at least five times larger than Earth, seething with the appalling heat generated by the inexorable contraction of the stupendous mass of material pressing down to its centre. For more than four billion years Jupiter’s immense gravitational power has been squeezing the planet slowly, relentlessly, steadily, converting gravitational energy into heat, raising the temperature of that rocky core to thirty thousand degrees, spawning the heat flow that warms the planet from within. That hot, rocky core is the original protoplanet seed from the solar system’s primeval time, the nucleus around which those awesome layers of hydrogen and helium and ammonia, methane, sulphur compounds and water have wrapped themselves.
Ben Bova
Jupiter
Science quotes on:  |  Ammonia (15)  |  Appalling (10)  |  Awesome (15)  |  Billion (104)  |  Centre (31)  |  Compound (117)  |  Contraction (18)  |  Convert (22)  |  Core (20)  |  Degree (277)  |  Down (455)  |  Earth (1076)  |  Energy (373)  |  Five (16)  |  Flow (89)  |  Generate (16)  |  Gravitation (72)  |  Heart (243)  |  Heat (180)  |  Helium (11)  |  Hot (63)  |  Hydrogen (80)  |  Immense (89)  |  Inexorable (10)  |  Jupiter (28)  |  Large (398)  |  Layer (41)  |  Least (75)  |  Lie (370)  |  Mass (160)  |  Material (366)  |  Methane (9)  |  More (2558)  |  Nucleus (54)  |  Original (61)  |  Planet (402)  |  Power (771)  |  Press (21)  |  Primeval (15)  |  Raise (38)  |  Relentlessly (2)  |  Rocky (3)  |  Seed (97)  |  Seething (3)  |  Slowly (19)  |  Solar System (81)  |  Solar Systems (5)  |  Solid (119)  |  Spawn (2)  |  Squeeze (7)  |  Steadily (7)  |  Stupendous (13)  |  Sulphur (19)  |  System (545)  |  Temperature (82)  |  Themselves (433)  |  Thousand (340)  |  Time (1911)  |  Warm (74)  |  Water (503)  |  Wrap (7)  |  Year (963)

I have said that mathematics is the oldest of the sciences; a glance at its more recent history will show that it has the energy of perpetual youth. The output of contributions to the advance of the science during the last century and more has been so enormous that it is difficult to say whether pride in the greatness of achievement in this subject, or despair at his inability to cope with the multiplicity of its detailed developments, should be the dominant feeling of the mathematician. Few people outside of the small circle of mathematical specialists have any idea of the vast growth of mathematical literature. The Royal Society Catalogue contains a list of nearly thirty- nine thousand papers on subjects of Pure Mathematics alone, which have appeared in seven hundred serials during the nineteenth century. This represents only a portion of the total output, the very large number of treatises, dissertations, and monographs published during the century being omitted.
In Presidential Address British Association for the Advancement of Science, Sheffield, Section A, Nature (1 Sep 1910), 84, 285.
Science quotes on:  |  Achievement (187)  |  Advance (298)  |  Alone (324)  |  Appear (122)  |  Being (1276)  |  Catalogue (5)  |  Century (319)  |  Circle (117)  |  Contain (68)  |  Contribution (93)  |  Cope (9)  |  Despair (40)  |  Detail (150)  |  Development (441)  |  Difficult (263)  |  Dissertation (2)  |  Dominant (26)  |  Energy (373)  |  Enormous (44)  |  Feel (371)  |  Feeling (259)  |  Glance (36)  |  Greatness (55)  |  Growth (200)  |  History (716)  |  Hundred (240)  |  Idea (881)  |  Inability (11)  |  Large (398)  |  Last (425)  |  List (10)  |  Literature (116)  |  Mathematician (407)  |  Mathematics (1395)  |  Modern Mathematics (50)  |  Monograph (5)  |  More (2558)  |  Multiplicity (14)  |  Nearly (137)  |  Nineteenth (5)  |  Number (710)  |  Oldest (9)  |  Omit (12)  |  Output (12)  |  Outside (141)  |  Paper (192)  |  People (1031)  |  Perpetual (59)  |  Portion (86)  |  Pride (84)  |  Publish (42)  |  Pure (299)  |  Pure Mathematics (72)  |  Recent (78)  |  Represent (157)  |  Royal (56)  |  Royal Society (17)  |  Say (989)  |  Serial (4)  |  Show (353)  |  Small (489)  |  Society (350)  |  Specialist (33)  |  Subject (543)  |  Thousand (340)  |  Total (95)  |  Treatise (46)  |  Vast (188)  |  Will (2350)  |  Youth (109)

Only once in the historical record has a jump on the San Andreas exceeded the jump of 1906. In 1857, near Tejon Pass outside Los Angeles, the two sides shifted thirty feet.
Assembling California
Science quotes on:  |  Angeles (4)  |  Exceed (10)  |  Foot (65)  |  Historical (70)  |  Jump (31)  |  Los (4)  |  Outside (141)  |  Pass (241)  |  Record (161)  |  Shift (45)  |  Side (236)  |  Two (936)

The ideal government of all reflective men, from Aristotle onward, is one which lets the individual alone–one which barely escapes being no government at all. This ideal, I believe, will be realized in the world twenty or thirty centuries after I have passed from these scenes and taken up my public duties in Hell.
…...
Science quotes on:  |  Alone (324)  |  Aristotle (179)  |  Barely (5)  |  Being (1276)  |  Belief (615)  |  Century (319)  |  Duty (71)  |  Escape (85)  |  Government (116)  |  Hell (32)  |  Ideal (110)  |  Individual (420)  |  Let (64)  |  Onward (6)  |  Pass (241)  |  Public (100)  |  Realize (157)  |  Reflective (3)  |  Scene (36)  |  Will (2350)  |  World (1850)

Thus, remarkably, we do not know the true number of species on earth even to the nearest order of magnitude. My own guess, based on the described fauna and flora and many discussions with entomologists and other specialists, is that the absolute number falls somewhere between five and thirty million.
Conservation for the 21st Century
Science quotes on:  |  Absolute (153)  |  Base (120)  |  Describe (132)  |  Discussion (78)  |  Do (1905)  |  Earth (1076)  |  Entomologist (7)  |  Fall (243)  |  Fauna (13)  |  Five (16)  |  Flora (9)  |  Guess (67)  |  Know (1538)  |  Magnitude (88)  |  Million (124)  |  Number (710)  |  Order (638)  |  Order Of Magnitude (5)  |  Other (2233)  |  Remarkably (3)  |  Specialist (33)  |  Species (435)  |  True (239)


Carl Sagan Thumbnail 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) -- Carl Sagan
Quotations by:Albert EinsteinIsaac NewtonLord KelvinCharles DarwinSrinivasa RamanujanCarl SaganFlorence NightingaleThomas EdisonAristotleMarie CurieBenjamin FranklinWinston ChurchillGalileo GalileiSigmund FreudRobert BunsenLouis PasteurTheodore RooseveltAbraham LincolnRonald ReaganLeonardo DaVinciMichio KakuKarl PopperJohann GoetheRobert OppenheimerCharles Kettering  ... (more people)

Quotations about:Atomic  BombBiologyChemistryDeforestationEngineeringAnatomyAstronomyBacteriaBiochemistryBotanyConservationDinosaurEnvironmentFractalGeneticsGeologyHistory of ScienceInventionJupiterKnowledgeLoveMathematicsMeasurementMedicineNatural ResourceOrganic ChemistryPhysicsPhysicianQuantum TheoryResearchScience and ArtTeacherTechnologyUniverseVolcanoVirusWind PowerWomen ScientistsX-RaysYouthZoology  ... (more topics)
Sitewide search within all Today In Science History pages:
Visit our Science and Scientist Quotations index for more Science Quotes from archaeologists, biologists, chemists, geologists, inventors and inventions, mathematicians, physicists, pioneers in medicine, science events and technology.

Names index: | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |

Categories index: | 1 | 2 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Thank you for sharing.
- 100 -
Sophie Germain
Gertrude Elion
Ernest Rutherford
James Chadwick
Marcel Proust
William Harvey
Johann Goethe
John Keynes
Carl Gauss
Paul Feyerabend
- 90 -
Antoine Lavoisier
Lise Meitner
Charles Babbage
Ibn Khaldun
Euclid
Ralph Emerson
Robert Bunsen
Frederick Banting
Andre Ampere
Winston Churchill
- 80 -
John Locke
Bronislaw Malinowski
Bible
Thomas Huxley
Alessandro Volta
Erwin Schrodinger
Wilhelm Roentgen
Louis Pasteur
Bertrand Russell
Jean Lamarck
- 70 -
Samuel Morse
John Wheeler
Nicolaus Copernicus
Robert Fulton
Pierre Laplace
Humphry Davy
Thomas Edison
Lord Kelvin
Theodore Roosevelt
Carolus Linnaeus
- 60 -
Francis Galton
Linus Pauling
Immanuel Kant
Martin Fischer
Robert Boyle
Karl Popper
Paul Dirac
Avicenna
James Watson
William Shakespeare
- 50 -
Stephen Hawking
Niels Bohr
Nikola Tesla
Rachel Carson
Max Planck
Henry Adams
Richard Dawkins
Werner Heisenberg
Alfred Wegener
John Dalton
- 40 -
Pierre Fermat
Edward Wilson
Johannes Kepler
Gustave Eiffel
Giordano Bruno
JJ Thomson
Thomas Kuhn
Leonardo DaVinci
Archimedes
David Hume
- 30 -
Andreas Vesalius
Rudolf Virchow
Richard Feynman
James Hutton
Alexander Fleming
Emile Durkheim
Benjamin Franklin
Robert Oppenheimer
Robert Hooke
Charles Kettering
- 20 -
Carl Sagan
James Maxwell
Marie Curie
Rene Descartes
Francis Crick
Hippocrates
Michael Faraday
Srinivasa Ramanujan
Francis Bacon
Galileo Galilei
- 10 -
Aristotle
John Watson
Rosalind Franklin
Michio Kaku
Isaac Asimov
Charles Darwin
Sigmund Freud
Albert Einstein
Florence Nightingale
Isaac Newton


by Ian Ellis
who invites your feedback
Thank you for sharing.
Today in Science History
Sign up for Newsletter
with quiz, quotes and more.