Theory Quotes

2628 Theory quotes by 1622 unique authors

We cannot see how the evidence afforded by the unquestioned progressive development of organised existence-crowned as it has been by the recent creation of the… — George Julius Poulett Scrope
You believe in the God who plays dice, and I in complete law and order in a world that objectively exists, and which I, in… — Albert Einstein
Earlier theories ... were based on the hypothesis that all the matter in the universe was created in one big bang at a particular time… — Fred Hoyle
I have a peculiar theory about radium, and I believe it is the correct one. I believe that there is some mysterious ray pervading the… — Thomas A. Edison
It is in scientific honesty that I endorse the presentation of alternative theories for the origin of the universe, life and man in the science… — Wernher von Braun
The words are strung together, with their own special grammar-the laws of quantum theory-to form sentences, which are molecules. Soon we have books, entire libraries,… — Heinz Pagels
Facts and theories are different things, not rungs in a hierarchy of increasing certainty. Facts are the world's data. Theories are structures of ideas that… — Stephen Jay Gould
Fortunately I experienced Max Wertheimer's teaching in Berlin and collaborated for over a decade with Wolfgang Köhler. I need not emphasize my debts to these… — Kurt Lewin
I cannot seriously believe in it [quantum theory] because the theory cannot be reconciled with the idea that physics should represent a reality in time… — Albert Einstein
Nothing in physics seems so hopeful to as the idea that it is possible for a theory to have a high degree of symmetry was… — Steven Weinberg
There is now a feeling that the pieces of physics are falling into place, not because of any single revolutionary idea or because of the… — Steven Weinberg
Facts do not 'speak for themselves'; they are read in the light of theory. — Stephen Jay Gould
The carefully fostered theory that schoolwork can be made easy and enjoyable breaks down as soon as anything, however trivial, has to be learned. — Agnes Repplier
One must either accept some theory or else believe one's own instinct or follow the world's opinion. — Gertrude Stein
I am more fond of achieving than striving. My theories must prove to be facts or be discarded as worthless. My efforts must soon be… — Carolyn Wells
Philosophy is not a theory but an activity. — Ludwig Wittgenstein
There are many examples of old, incorrect theories that stubbornly persisted, sustained only by the prestige of foolish but well-connected scientists. . . . Many… — Michio Kaku
My choice of colors does not rest on any scientific theory, it is based on observation, on feeling, on the experience of my sensibility. — Henri Matisse
In this movement of colors I find the essence, which does not arise from a system, or an a priori theory. — Robert Delaunay
Art has the lovely habit of ruining all artistic theories. — Marcel Duchamp
If you want to know the theory and methods of revolution, you must take part in revolution. — Mao Zedong
Thought and theory must precede all salutary action; yet action is nobler in itself than either thought or theory. — William Wordsworth
Theory is worth but little, unless it can explain its own phenomena, and it must effect this without contradicting itself; therefore, the facts are sometimes… — Charles Caleb Colton
Theories that go counter to the facts of human nature are foredoomed. — Edith Hamilton
Theories are usually the over-hasty efforts of an impatient understanding that would gladly be rid of phenomena, and so puts in their place pictures, notions,… — Johann Wolfgang von Goethe

Who Wrote These Theory Quotes

1,622 authors contributed a total of 2,628 Theory Quotes, led by these top contributors: