Epistemology without contact with science becomes an empty scheme. Science without epistemology is-insofar as it is thinkable at all-primitive and muddled.

It would be better if you began to teach others only after you yourself have learned something.

No amount of experimentation can ever prove me right; a single experiment can prove me wrong.

Hope that justice will be done to those brave men who stood up for their convictions.

Politics is far more complicated than physics.

Mathematics deals exclusively with the relations of concepts to each other without consideration of their relation to experience.

Nonsense, seems to sum up everything.