The price of training is always a certain trained incapacity: the more we know how to do something, the harder it is to learn to do it differently.

Every discipline develops standards of professional competence to which its workers are subject... Every scientific community is a society in the small, so to speak, with its own agencies of social control.

We are forever asking Nature whether it has stopped beating its wife.

A philosophy which speaks, even indirectly, only to philosophers is no philosophy at all; and I think the same is true if it speaks only to scientists, or only to jurists, or priests, or any other special class.

Give a small boy a hammer and he will find that everything he encounters needs pounding.

Experience is of particulars only.

Mathematics is not yet capable of coping with the naïveté of the mathematician himself.