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: “Dangerous... to take shelter under a tree, during a thunder-gust. It has been fatal to many, both men and beasts.”
more quiz questions >>
Home > Dictionary of Science Quotations > Scientist Names Index K > August Krogh Quotes

Thumbnail of August Krogh (source)
August Krogh
(15 Nov 1874 - 13 Sep 1949)

Danish physiologist and zoologist who received the 1920 Nobel Prize for Physiology or Medicine for his discovery of the motor-regulating mechanism of capillaries (small blood vessels). Krogh’s research linked exercise physiology with nutrition and metabolism.


Science Quotes by August Krogh (6 quotes)

Photo of August Krogh, head and shoulders, facing half-right. Credit palette.fm for colorization help.
Credit palette.fm for colorization help. (source)
In man, the mechanical breathing is essential to life, and it is one of the old tests for death to see whether these movements have ceased completely.
— August Krogh
In 'Introduction', The Comparative Physiology of Respiratory Mechanisms (1941, 2015), 1. The book is based on a series of lectures delivered at Swarthmore College in 1939.
Science quotes on:  |  Breathe (49)  |  Cease (81)  |  Classic (13)  |  Death (406)  |  Essential (210)  |  Life (1870)  |  Mechanical (145)  |  Movement (162)  |  Observation (593)  |  Test (221)

In the tissues generally, and in such a cavity as the abdomen, the pressure is everywhere and practically always very nearly atmospheric, and must be so, because the integuments give way very easily to any excess of pressure, whether positive or negative.
— August Krogh
In The Anatomy and Physiology of Capillaries (1922), 244.
Science quotes on:  |  Abdomen (6)  |  Atmospheric Pressure (2)  |  Cavity (9)  |  Damage (38)  |  Excess (23)  |  Integument (4)  |  Negative (66)  |  Positive (98)  |  Pressure (69)  |  Tissue (51)

The absorption of oxygen and the elimination of carbon dioxide in the lungs take place by diffusion alone. There is no trustworthy evidence of any regulation of this process on the part of the organism.
— August Krogh
Krogh summing up his results related to a quote from The Mechanism of gas Exchange (1910), 257, as cited by E. Snorrason, 'Krogh, Schack August Steenberg', in Charles Coulton Gillispie (ed.), Dictionary of Scientific Biography (1973), Vol 7, 502.
Science quotes on:  |  Absorption (13)  |  Alone (324)  |  Carbon (68)  |  Carbon Dioxide (25)  |  Diffusion (13)  |  Elimination (26)  |  Evidence (267)  |  Lung (37)  |  Organism (231)  |  Oxygen (77)  |  Process (439)  |  Regulation (25)  |  Trustworthy (14)

The theory of the lung as a gland has justified its existence and done excellent service in bringing forward facts, which shall survive any theoretical construction that has been or may hereafter be put upon them.
— August Krogh
From The Mechanism of Gas Exchange (1910), 257, as cited by E. Snorrason, 'Krogh, Schack August Steenberg', in Charles Coulton Gillispie (ed.), Dictionary of Scientific Biography (1973), Vol 7, 502.
Science quotes on:  |  Construction (114)  |  Excellent (29)  |  Existence (481)  |  Fact (1257)  |  Facts (553)  |  Forward (104)  |  Gland (14)  |  Hereafter (3)  |  Justification (52)  |  Lung (37)  |  Service (110)  |  Survive (87)  |  Theory (1015)

We may fondly imagine that we are impartial seekers after truth, but with a few exceptions, to which I know that I do not belong, we are influenced—and sometimes strongly—by our personal bias; and we give our best thoughts to those ideas which we have to defend.
— August Krogh
(Said in Boston, 1929.) As quoted by E. Snorrason, 'Krogh, Schack August Steenberg', in Charles Coulton Gillispie (ed.), Dictionary of Scientific Biography (1973), Vol 7, 503.
Science quotes on:  |  Belong (168)  |  Best (467)  |  Bias (22)  |  Defense (26)  |  Do (1905)  |  Exception (74)  |  Idea (881)  |  Imagination (349)  |  Imagine (176)  |  Impartial (4)  |  Influence (231)  |  Know (1538)  |  Personal (75)  |  Seeker (8)  |  Thought (995)  |  Truth (1109)

When experimental results are found to be in conflict with those of an earlier investigator, the matter is often taken too easily and disposed of for an instance by pointing out a possible source of error in the experiments of the predessessor, but without enquiring whether the error, if present, would be quantitatively sufficient to explain the discrepancy. I think that disagreement with former results should never be taken easily, but every effort should be made to find a true explanation. This can be done in many more cases than it actually is; and as a result, it can be done more easily by the man “on the spot” who is already familiar with the essential details. But it may require a great deal of imagination, and very often it will require supplementary experiments.
— August Krogh
From 'August Krogh' in Festkrift Københavns Universitet 1950 (1950), 18, as cited by E. Snorrason, 'Krogh, Schack August Steenberg', in Charles Coulton Gillispie (ed.), Dictionary of Scientific Biography (1973), Vol 7, 501. The DSB quote is introduced, “All his life Krogh was more interested in physical than in chemiical problems in biology, and he explained his critical attitude thus.”
Science quotes on:  |  Already (226)  |  Conflict (77)  |  Deal (192)  |  Detail (150)  |  Disagreement (14)  |  Discrepancy (7)  |  Dispose (10)  |  Earlier (9)  |  Ease (40)  |  Effort (243)  |  Enquiry (89)  |  Error (339)  |  Essential (210)  |  Experiment (736)  |  Experimental (193)  |  Explain (334)  |  Explanation (246)  |  Familiarity (21)  |  Find (1014)  |  Former (138)  |  Great (1610)  |  Imagination (349)  |  Investigator (71)  |  Man (2252)  |  Matter (821)  |  More (2558)  |  Never (1089)  |  Point (584)  |  Possible (560)  |  Present (630)  |  Quantitative (31)  |  Require (229)  |  Result (700)  |  Source Of Error (2)  |  Sufficient (133)  |  Supplementary (4)  |  Think (1122)  |  Truth (1109)  |  Will (2350)



Quotes by others about August Krogh (1)

It is rare enough that a scientist sheds light on an area which nature has kept secret and then during his lifetime, sees that area illuminate in turn every corner of physiology and medicine. It is rarer still that one man can contribute concurrently almost as much to several other biological fields as well. That meanwhile he [August Krogh] should develop in addition a large school of devoted students who loved the man even more, if possible, than they venerated the scientist, spells the highest form of genius.
Commemorative words presented to the American Physiological Society (1950), describing Eugene Landis, his friend and colleague at Harvard University. As quoted and cited in Bodil Schmidt-Nielsen, August and Marie Krogh: Lives in Science (2013), 4.
Science quotes on:  |  Biology (232)  |  Concurrent (2)  |  Contribute (30)  |  Corner (59)  |  Field (378)  |  Genius (301)  |  Illuminate (26)  |  Lifetime (40)  |  Medicine (392)  |  Nature (2017)  |  Physiology (101)  |  Rare (94)  |  Scientist (881)  |  Secret (216)  |  Several (33)  |  Venerate (3)


See also:
  • 15 Nov - short biography, births, deaths and events on date of Krogh's birth.
  • August and Marie Krogh: Lives in Science, by Bodil Schmidt-Nielsen. - book suggestion.
  • Booklist for Nobel Prize Scientists.

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.