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: “Science without religion is lame; religion without science is blind.”
more quiz questions >>
Home > Dictionary of Science Quotations > Scientist Names Index A > Louis Agassiz Quotes > Evolution

Thumbnail of Louis Agassiz
Louis Agassiz
(28 May 1807 - 14 Dec 1873)

Swiss-American naturalist and geologist who published several volumes describing and classifying fossil fish. He is also known for significant work on glacier activity.


Louis Agassiz Quotes on Evolution (4 quotes)

>> Click for 39 Science Quotes by Louis Agassiz

>> Click for Louis Agassiz Quotes on | Earth | Geology | God | Knowledge | Nature | Study | Teaching |

Absorbed in the special investigation, I paid no heed to the edifice which was meanwhile unconsciously building itself up. Having however completed the comparison of the fossil species in Paris, I wanted, for the sake of an easy revision of the same, to make a list according to their succession in geological formations, with a view of determining the characteristics more exactly and bringing them by their enumeration into bolder relief. What was my joy and surprise to find that the simplest enumeration of the fossil fishes according to their geological succession was also a complete statement of the natural relations of the families among themselves; that one might therefore read the genetic development of the whole class in the history of creation, the representation of the genera and species in the several families being therein determined; in one word, that the genetic succession of the fishes corresponds perfectly with their zoological classification, and with just that classification proposed by me.
— Louis Agassiz
Quoted in Elizabeth Cary Agassiz (ed.), Louis Agassiz: His Life and Correspondence (1885), Vol. I, 203-4.
Science quotes on:  |  Absorb (54)  |  According (236)  |  Being (1276)  |  Building (158)  |  Characteristic (154)  |  Class (168)  |  Classification (102)  |  Comparison (108)  |  Complete (209)  |  Completed (30)  |  Creation (350)  |  Development (441)  |  Easy (213)  |  Edifice (26)  |  Evolution (635)  |  Find (1014)  |  Formation (100)  |  Fossil (143)  |  Genetic (110)  |  Heed (12)  |  History (716)  |  Investigation (250)  |  Joy (117)  |  More (2558)  |  Natural (810)  |  Read (308)  |  Relief (30)  |  Representation (55)  |  Revision (7)  |  Sake (61)  |  Special (188)  |  Species (435)  |  Statement (148)  |  Succession (80)  |  Surprise (91)  |  Themselves (433)  |  View (496)  |  Want (504)  |  Whole (756)  |  Word (650)

I have devoted my whole life to the study of Nature, and yet a single sentence may express all that I have done. I have shown that there is a correspondence between the succession of Fishes in geological times and the different stages of their growth in the egg,—this is all. It chanced to be a result that was found to apply to other groups and has led to other conclusions of a like nature.
— Louis Agassiz
In Methods of Study in Natural History (1863), 23.
Science quotes on:  |  Apply (170)  |  Conclusion (266)  |  Correspondence (24)  |  Devoted (59)  |  Different (595)  |  Egg (71)  |  Evolution (635)  |  Express (192)  |  Fossil (143)  |  Geology (240)  |  Growth (200)  |  Life (1870)  |  Nature (2017)  |  Other (2233)  |  Result (700)  |  Single (365)  |  Stage (152)  |  Study (701)  |  Succession (80)  |  Time (1911)  |  Whole (756)

The epoch of intense cold which preceded the present creation has been only a temporary oscillation of the earth’s temperature, more important than the century-long phases of cooling undergone by the Alpine valleys. It was associated with the disappearance of the animals of the diluvial epoch of the geologists, as still demonstrated by the Siberian mammoths; it preceded the uplifting of the Alps and the appearance of the present-day living organisms, as demonstrated by the moraines and the existence of fishes in our lakes. Consequently, there is complete separation between the present creation and the preceding ones, and if living species are sometimes almost identical to those buried inside the earth, we nevertheless cannot assume that the former are direct descendants of the latter or, in other words, that they represent identical species.
— Louis Agassiz
From Discours de Neuchâtel (1837), as translated by Albert V. Carozzi in Studies on Glaciers: Preceded by the Discourse of Neuchâtel (1967), lviii.
Science quotes on:  |  Alp (9)  |  Alps (9)  |  Animal (651)  |  Appearance (145)  |  Century (319)  |  Cold (115)  |  Complete (209)  |  Cooling (10)  |  Creation (350)  |  Descendant (18)  |  Direct (228)  |  Disappearance (28)  |  Earth (1076)  |  Epoch (46)  |  Evolution (635)  |  Existence (481)  |  Extinction (80)  |  Former (138)  |  Geologist (82)  |  Geology (240)  |  Ice Age (10)  |  Identical (55)  |  Lake (36)  |  Living (492)  |  Long (778)  |  Mammoth (9)  |  More (2558)  |  Nevertheless (90)  |  Organism (231)  |  Oscillation (13)  |  Other (2233)  |  Phase (37)  |  Present (630)  |  Represent (157)  |  Separation (60)  |  Species (435)  |  Still (614)  |  Temperature (82)  |  Temporary (24)  |  Valley (37)  |  Word (650)

The resources of the Deity cannot be so meagre, that, in order to create a human being endowed with reason, he must change a monkey into a man.
— Louis Agassiz
Methods of Study in Natural History (1863), Preface, iv.
Science quotes on:  |  Being (1276)  |  Change (639)  |  Create (245)  |  Deity (22)  |  Endowed (52)  |  Evolution (635)  |  God (776)  |  Human (1512)  |  Human Being (185)  |  Man (2252)  |  Monkey (57)  |  Must (1525)  |  Order (638)  |  Reason (766)


See also:
  • 28 May - short biography, births, deaths and events on date of Agassiz's birth.
  • Louis Agassiz: A Life in Science, by Edward Lurie. - book suggestion.

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.