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Who said: “Nature does nothing in vain when less will serve; for Nature is pleased with simplicity and affects not the pomp of superfluous causes.”
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Home > Category Index for Science Quotations > Category Index P > Category: Pathogen

Pathogen Quotes (5 quotes)
Pathogenic Quotes

Cuando no se ha nacido rico y es fuerza, por tanto, luchar por la existencia, la mαs hαbil y piadosa conducta consiste en adormecer y atenuar la toxicidad de nuestros ιmulos y adversarios con el cloroformo de la cortesνa y del halago. Procedamos como el bacteriσlogo que, en la imposibilidad de aniquilar al microbio, opta por embolarlo, es decir, por convertirlo en saludable vacuna.
It is best to attenuate the virulence of our adversaries with the chloroform of courtesy and flattery, much as bacteriologists disarm a pathogen by converting it into a vaccine.
In Charlas de Cafι: pensamientos, anιcdotas y confidencias (1920, 1967), 32. (Cafι Chats: Thoughts, Anecdotes and Confidences). As translated in Peter McDonald (ed.) Oxford Dictionary of Medical Quotations (2004), 83. A more complete translation attempted by Webmaster using Google Translate is “When you are not born rich and mighty, thus, struggle for existence, the most shrewd and pious behavior is to calm and reduce the toxicity of our rivals and adversaries with the chloroform of politeness and flattery. Proceed as the bacteriologist who, unable to kill the microbe, opt for embolization (?), ie, by converting it healthy vaccine.”
Science quotes on:  |  Adversary (5)  |  Bacteriologist (4)  |  Best (143)  |  Chloroform (2)  |  Courtesy (2)  |  Flattery (6)  |  Vaccine (9)  |  Virulence (3)

Bacteria are highly adaptable. They frequently change both morphologically and functionally. Their virulence is also an essentially fluctuating property, that increases or diminishes according to the conditions to which the pathogenic organism is subjected.
In Studies in Immunity (1909), 1.
Science quotes on:  |  Adaptability (4)  |  Bacteria (32)  |  Change (324)  |  Condition (130)  |  Decrease (11)  |  Essential (92)  |  Fluctuation (7)  |  Frequent (12)  |  Function (100)  |  Increase (116)  |  Morphology (18)  |  Organism (144)  |  Property (96)  |  Virulence (3)

I can think of a few microorganisms, possibly the tubercle bacillus, the syphilis spirochete, the malarial parasite, and a few others, that have a selective advantage in their ability to infect human beings, but there is nothing to be gained, in an evolutionary sense, by the capacity to cause illness or death. Pathogenicity may be something of a disadvantage for most microbes…
In 'Germs', The Lives of a Cell: Notes of a Biology Watcher (1974), 90.
Science quotes on:  |  Ability (84)  |  Advantage (48)  |  Bacillus (9)  |  Cause (242)  |  Death (277)  |  Disadvantage (9)  |  Evolution (500)  |  Gain (53)  |  Human Being (61)  |  Illness (23)  |  Malaria (9)  |  Microbe (19)  |  Microorganism (21)  |  Parasite (30)  |  Selective (7)  |  Spirochete (2)  |  Syphilis (5)

I must … explain how I was led to concern myself with the pathogenic protozoa. … I was sent to Algeria and put in charge of a department of the hospital at Bone. A large number of my patients had malarial fevers and I was naturally led to study these fevers of which I had only seen rare and benign forms in France.
From Nobel Lecture (11 Dec 1907), 'Protozoa as Causes of Diseases', collected in Nobel Lectures, Physiology or Medicine 1901-1921 (1967, 1999), 264.
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If we can abstract pathogenicity and hygiene from our notion of dirt, we are left with the old definition of dirt as matter out of place. This is a very suggestive approach. It implies two conditions: a set of ordered relations and a contravention of that order. Dirt then, is never a unique, isolated event.
In Purity and Danger: An Analysis of the Concepts of Pollution and Taboo (1966), 35.
Science quotes on:  |  Definition (154)  |  Dirt (8)  |  Hygiene (8)


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
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- 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



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