A Quote by Richard P. Feynman

The test of all knowledge is experiment.

Richard P. Feynman

Quote Topics

Experiment Knowledge Test

Quote Author

Richard P. Feynman
American - Physicist
May 11, 1918 - February 15, 1988

The test of all knowledge is experiment. Experiment is the sole judge of scientific truth.

Richard P. Feynman

The principle of science, the definition, almost, is the following: The test of all knowledge is experiment. Experiment is the sole judge of scientific "truth." But what is the source of knowledge? Where do the laws that are to be tested come from? Experiment, itself, helps to produce these laws, in the sense that it gives us hints. But also needed is imagination to create from these hints the great generalizations--to guess at the wonderful, simple, but very strange patterns beneath them all, and then to experiment to check again whether we have made the right guess.

Richard P. Feynman

We must trust to nothing but facts: These are presented to us by Nature, and cannot deceive. We ought, in every instance, to submit our reasoning to the test of experiment, and never to search for truth but by the natural road of experiment and observation.

Antoine Lavoisier

We must trust to nothing but facts: these are presented to us by nature and cannot deceive. We ought, in every instance, to submit our reasoning to the test of experiment, and never to search for truth but by the natural road of experiment and observation.

Antoine Lavoisier

In the spirit of science, there really is no such thing as a 'failed experiment.' Any test that yields valid data is a valid test.

Adam Savage

When men have realized that time has upset many fighting faiths, they may come to believe... that the ultimate good desired is better reached by free trade in ideas-- that the best test of truth is the power of the thought to get itself accepted in the competition of the market, and that truth is the only ground upon which their wishes safely can be carried out. That at any rate is the theory of our Constitution. It is an experiment. As all life is an experiment. Every year if not every day we wager our salvation upon some prophecy based upon imperfect knowledge.

Oliver Wendell Holmes Sr.

The TV scientist who mutters sadly, "The experiment is a failure; we have failed to achieve what we had hoped for," is suffering mainly from a bad script writer. An experiment is never a failure solely because it fails to achieve predicted results. An experiment is a failure only when it also fails adequately to test the hypothesis in question, when the data it produces don't prove anything one way or another.

Robert M. Pirsig

Frequently, I have been asked if an experiment I have planned is pure or applied research; to me, it is more important to know if the experiment will yield new and probably enduring knowledge about nature.

William Shockley

The endless cycle of idea and action, / Endless invention, endless experiment, / Brings knowledge of motion, but not of stillness; / Knowledge of speech, but not of silence; / Knowledge of words, and ignorance of The Word.

T. S. Eliot

As long as there is cash, and the economy is running, all is well. But as a bank, we'll have to test, experiment, try a hundred different things. A few may work, a few may fail, but we have to experiment and try.

Uday Kotak

Frequently, I have been asked if an experiment I have planned is pure or applied science; to me it is more important to know if the experiment will yield new and probably enduring knowledge about nature. If it is likely to yield such knowledge, it is, in my opinion, good fundamental research; and this is more important than whether the motivation is purely aesthetic satisfaction on the part of the experimenter on the one hand or the improvement of the stability of a high-power transistor on the other.

William Shockley

A fundamental principle of information theory is that you can’t guarantee outcomes… in order for an experiment to yield knowledge, it has to be able to fail. If you have guaranteed experiments, you have zero knowledge

George Gilder

There is one experiment which I always like to try, because it proves something whichever way it goes. A solution of iodine in water is shaken with bone-black, filtered and tested with starch paste. If the colorless solution does not turn the starch blue, the experiment shows how completely charcoal extracts iodine from aqueous solution. If the starch turns blue, the experiment shows that the solution, though apparently colorless, still contains iodine which can be detected by means of a sensitive starch test.