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Who said: “As far as the laws of mathematics refer to reality, they are not certain; and as far as they are certain, they do not refer to reality.”
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Home > Category Index for Science Quotations > Category Index P > Category: Potency

Potency Quotes (7 quotes)

Believing, as I do, in the continuity of nature, I cannot stop abruptly where our microscopes cease to be of use. Here the vision of the mind authoritatively supplements the vision of the eye. By a necessity engendered and justified by science I cross the boundary of the experimental evidence, and discern in that Matter which we, in our ignorance of its latent powers, and notwithstanding our professed reverence for its Creator, have hitherto covered with opprobrium, the promise and potency of all terrestrial Life.
'Address Delivered Before The British Association Assembled at Belfast', (19 Aug 1874). Fragments of Science for Unscientific People: A Series of Detached Essays, Lectures, and Reviews (1892), Vol. 2, 191.
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Books are not absolutely dead things, but do contain a potency of life in them to be as active as that soul was whose progeny they are.
In Areopagitica: A speech of Mr John Milton for the Liberty of Unlicenced printing to the Parliament of England (23 Nov 1644), 4.
Science quotes on:  |  Active (25)  |  Book (257)  |  Contain (67)  |  Dead (57)  |  Life (1131)  |  Progeny (10)  |  Soul (166)

Briefly, in the act of composition, as an instrument there intervenes and is most potent, fire, flaming, fervid, hot; but in the very substance of the compound there intervenes, as an ingredient, as it is commonly called, as a material principle and as a constituent of the whole compound the material and principle of fire, not fire itself. This I was the first to call phlogiston.
Specimen Beccherianum (1703). Trans. J. R. Partington, A History of Chemistry (1961), Vol. 2, 668.
Science quotes on:  |  Composition (60)  |  Compound (58)  |  Fire (133)  |  Flame (26)  |  Hot (20)  |  Ingredient (14)  |  Intervention (12)  |  Material (156)  |  Phlogiston (9)  |  Principle (292)  |  Substance (87)

One in ten plant species contains anticancer substances of variable potency, but relatively few have been bioassayed.
In 'Edward O. Wilson: The Biological Diversity Crisis: A Challenge to Science', Issues in Science and Technology (Fall 1985), 2, No. 1, 25.
Science quotes on:  |  Botany (51)  |  Cancer (49)  |  Contain (67)  |  Medicine (344)  |  Pharmaceutical (4)  |  Plant (200)  |  Species (221)  |  Substance (87)  |  Variable (16)

Pride is a sense of worth derived from something that is not organically part of us, while self-esteem derives from the potentialities and achievements of the self. We are proud when we identify ourselves with an imaginary self, a leader, a holy cause, a collective body or possessions. There is fear and intolerance in pride; it is sensitive and uncompromising. The less promise and potency in the self, the more imperative is the need for pride. The core of pride is self-rejection.
In The Passionate State of Mind (1955), 23.
Science quotes on:  |  Achievement (150)  |  Body (247)  |  Cause (285)  |  Collective (19)  |  Core (14)  |  Derive (33)  |  Fear (142)  |  Holy (17)  |  Identify (13)  |  Imaginary (16)  |  Imperative (11)  |  Intolerance (8)  |  Leader (28)  |  Less (102)  |  Need (287)  |  Ourselves (51)  |  Part (222)  |  Possession (46)  |  Potentiality (7)  |  Pride (64)  |  Promise (38)  |  Self (47)  |  Self-Esteem (5)  |  Sense (321)  |  Sensitive (13)  |  Worth (99)

There are certain things which can exist but do not, and others which do exist. Those which can be are said to exist in potency, whereas those which are, are said to exist in act.
First sentence of Chapter I in Selected Writings of St. Thomas Aquinas (1965), 7.
Science quotes on:  |  Exist (148)  |  Natural Law (31)

There is no more potent antidote to the corroding influence of mammon than the presence in the community of a body of men devoted to science, living for investigation and caring nothing for the lust of the eyes and the pride of life.
In address at the University of Minnesota, "Teacher and Student" (1892) collected in Aequanimitas: With Other Addresses to Medical Students, Nurses and Practitioners of Medicine (1904), 29.
Science quotes on:  |  Antidote (6)  |  Care (95)  |  Community (82)  |  Corrosion (4)  |  Eye (222)  |  Influence (140)  |  Investigation (176)  |  Life (1131)  |  Lust (5)  |  Mammon (2)  |  Men Of Science (130)  |  Nothing (395)  |  Presence (33)  |  Pride (64)


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 Einstein Isaac Newton Lord Kelvin Charles Darwin Srinivasa Ramanujan Carl Sagan Florence Nightingale Thomas Edison Aristotle Marie Curie Benjamin Franklin Winston Churchill Galileo Galilei Sigmund Freud Robert Bunsen Louis Pasteur Theodore Roosevelt Abraham Lincoln Ronald Reagan Leonardo DaVinci Michio Kaku Karl Popper Johann Goethe Robert Oppenheimer Charles Kettering  ... (more people)

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- 100 -
Sophie Germain
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Ernest Rutherford
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William Harvey
Johann Goethe
John Keynes
Carl Gauss
Paul Feyerabend
- 90 -
Antoine Lavoisier
Lise Meitner
Charles Babbage
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Euclid
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Frederick Banting
Andre Ampere
Winston Churchill
- 80 -
John Locke
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Bible
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Bertrand Russell
Jean Lamarck
- 70 -
Samuel Morse
John Wheeler
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Pierre Laplace
Humphry Davy
Thomas Edison
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Theodore Roosevelt
Carolus Linnaeus
- 60 -
Francis Galton
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Avicenna
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- 50 -
Stephen Hawking
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John Dalton
- 40 -
Pierre Fermat
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Leonardo DaVinci
Archimedes
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- 30 -
Andreas Vesalius
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Richard Feynman
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- 20 -
Carl Sagan
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- 10 -
Aristotle
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