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

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

A problem is something you can do something about. If you can't do something about it, then it's not a problem, it's a predicament. That means it's something that must be coped with, endured.

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.

There is nothing more inspiring than having a mind unfold before you. Let people teach who have a calling. It is never just a job.

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.