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.

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

We are caught up in a paradox, one which might be called the paradox of conceptualization. The proper concepts are needed to formulate a good theory, but we need a good theory to arrive at the proper concepts.

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.

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.