Philosophy of science is about as useful to scientists as ornithology is to birds.

Mathematics is a language plus reasoning. It's like a language plus logic. Mathematics is a tool for reasoning.

I love only nature, and I hate mathematicians.

Philosophy of science is about as useful to scientists as ornithology is to birds.

It is the fact that the electrons cannot all get on top of each other that makes tables and everything else solid.

No man is rich who is unsatisfied, but who wants nothing possess his heart's desire.

This attitude of mind - this attitude of uncertainty - is vital to the scientist, and it is this attitude of mind which the student must first acquire. It becomes a habit of thought. Once acquired, we cannot retreat from it anymore.