Theories Quotes

546 quotes by 436 authors

Our tradition of political thought had its definite beginning in the teachings of Plato and Aristotle. I believe it came to a no less definite… — Hannah Arendt
People love conspiracy theories. — Neil Armstrong
Theories are always very thin and insubstantial, experience only is tangible. — Hosea Ballou
A mathematician is a person who can find analogies between theorems; a better mathematician is one who can see analogies between proofs and the best… — Stefan Banach
Theories of love are found in the works of scientists, philosophers, and theologians. — Mortimer Adler
Theories are patterns without value. What counts is action. — Constantin Brancusi
A people represents not so much an aggregate of ideas and theories as of obsessions. — Emile M. Cioran
There are two theories on hitting the knuckleball. Unfortunately, neither of them work. — Charley Lau
In evolution, as in all areas of science, our knowledge is incomplete. But the entire success of the scientific enterprise has depended on an insistence… — Bruce Alberts
A man practices the art of adventure when he heroically faces up to life. When he has the daring to open doors to new experiences.… — Wilferd Peterson
Theories have been outgrown. The means is disappearing, the reality of the sensation alone remains. It is that in its essence which I wish to… — Arthur Dove
Let the churches preach doctrines, theories, philosophies to their hearts' content, but when it comes to worship, the real practical part of religion, it should… — Swami Vivekananda
The history of acceptance of new theories frequently shows the following steps: At first the new idea is treated as pure nonsense, not worth looking… — Kurt Lewin
Muhammad professed to derive from Heaven, and he has inserted in the Koran, not only a body of religious doctrines, but political maxims, civil and… — Alexis de Tocqueville
Now, because he knows that his economic theories don't work, he's been spending these last few days calling me every name in the book. Lately… — Barack Obama
And now, without having wearied my friends, I hope, with detailed scientific accounts, theories, or deductions, I will only say that I have endeavoured to… — Joshua Slocum
Biological determinism is, in its essence, a theory of limits. It takes the current status of groups as a measure of where they should and… — Stephen Jay Gould
The fundamental biological variant is DNA. That is why Mendel's definition of the gene as the unvarying bearer of hereditary traits, its chemical identification by… — Jacques Monod
[Sherlock Holmes:] The temptation to form premature theories upon insufficient data is the bane of our profession. — Arthur Conan Doyle
Theory and fact are equally strong and utterly interdependent; one has no meaning without the other. We need theory to organize and interpret facts, even… — Stephen Jay Gould

Who Wrote These Theories Quotes

436 authors contributed a total of 546 Theories Quotes, led by these top contributors: