A Quote by Karl Popper

Propose theories which can be criticized. Think about possible decisive falsifying experiments-crucial experiments. But do not give up your theories too easily-not, at any rate, before you have critically examined your criticism.

Karl Popper

Quote Author

Karl Popper
Austrian - Philosopher
July 28, 1902 - September 17, 1994

Men of learning began to set experiments aside...to form theories...and to substitute these in the place of experiments.

John Wesley

Men who believe too firmly in their theories, do not believe enough in the theories of others. So ... these despisers of their fellows ... make experiments only to destroy a theory, instead of to seek the truth.

Claude Bernard

You make observations, write theories to fit them, try experiments to disprove the theories and, if you can't, you've got something.

Kary Mullis

True art is creation, and creation is beyond all theories. That is why I say to any beginner: Learn your theories as well as you can, but put them aside when you touch the miracle of the living soul. Not theories but your own creative individuality alone must decide.

Carl Jung

What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.

Norbert Wiener

I look at the most promising putative moral theories. I construct crucial thought experiments in areas where they give conflicting advice. I confront their conflicting advice with my own moral sensitivity, my moral intuition. I take the theory that can best explain the content of my intuitions as gaining inductive support through an inference to the best explanation.

Torbjorn Tannsjo

Anyone who has examined into the history of the theories of earth evolution must have been astounded to observe the manner in which the unique and the difficultly explainable has been made to take the place of the common and the natural in deriving the framework of these theories.

William Herbert Hobbs

Biochemists and biologists who adhere blindly to the Darwinism theory search for results that will be in agreement with their theories and consequently orient their research in a given direction, whether it be in the field of ecology, ethology, sociology, demography (dynamics of populations), genetics (so-called evolutionary genetics), or paleontology. This intrusion of theories has unfortunate results: it deprives observations and experiments of their objectivity, makes them biased, and, moreover, creates false problems.

Pierre-Paul Grasse

I think it's science and physics are just starting to learn from all these experiments. These experiments have been carried out hundreds and hundreds of times in all sorts of ways that no physicist really questions the end point. I think that these experiments are very clearly telling us that consciousness is limitless and the ultimate reality.

Robert Lanza

It is rational to choose the right means to your ends to develop very elegant abstract formal theories of rational choice, and then turn these into what look like moral theories. Philosophers tend to be ravished by the formal beauty of such theories, and they don't pay much attention to the fact that our human limitations make them pretty useless in practice, while the simple point about instrumental reasoning is too shallow to be of much real moral interest.

Allen W. Wood

...those experiments be not only esteemed which have an immediate and present use, but those principally which are of most universal consequence for invention of other experiments, and those which give more light to the invention of causes; for the invention of the mariner's needle, which giveth the direction, is of no less benefit for navigation than the invention of the sails, which give the motion.

Francis Bacon

If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.

Jeff Bezos

The loveliest theories are being overthrown by these damned experiments; it's no fun being a chemist anymore.

Justus von Liebig

Love your experiments (as you would an ugly child). Joy is the engine of growth. Exploit the liberty in casting your work as beautiful experiments, iterations, attempts, trials, and errors. Take the long view and allow yourself the fun of failure every day.