Occurrences in this domain are beyond the reach of exact prediction because of the variety of factors in operation, not because of any lack of order in nature.

A theory can be proved by experiment; but no path leads from experiment to the birth of a theory.

The most difficult part about understanding something is that we understand it all.

When I think of the most able students I have encountered in my teaching - I mean those who have distinguished themselves not only by skill but by independence of thought - then I must confess that all have had a lively interest in epistemology.

I have no special talent. I am only passionately curious.

When you won't be able to describe it simply just, you don't are aware of it well sufficient.

Everyone should be respected as an individual, but no one idolized.