227 Quotes by Karl Popper

I may be wrong and you may be right, and by an effort, we may get nearer to the truth.

The future depends on ourselves, and we do not depend on any historical necessity.

A theory that explains everything, explains nothing.

The defence of democracy must consist in making anti-democratic experiences too costly for those who try them; much more costly than a democratic compromise.

The method of learning by trial and error – of learning from our mistakes – seems to be fundamentally the same whether it is practised by lower or by higher animals, by chimpanzees or by men of science.

If you can’t say it simply and clearly, keep quiet, and keep working on it till you can.

I have learned more from Hayek than from any other living thinker, except perhaps Alfred Tarski – but not even excepting Russell.

The old scientific ideal of episteme – of absolutely certain, demonstrable knowledge – has proved to be an idol. The demand for scientific objectivity makes it inevitable that every scientific statement must remain tentative for ever.

Plato felt that a complete reconstruction of society’s political program was needed.