Man has an intense desire for assured knowledge.

I don't need to know everything, I just need to know where to find it, when I need it

It is harder to crack prejudice than an atom.

The process of scientific discovery is, in effect, a continual flight from wonder.

Outer changes always begin with an inner change of attitude.

If something is in me which can be called religious then it is the unbounded admiration for the structure of the world so far as our science can reveal it.

We have penetrated far less deeply into the regularities obtaining within the realm of living things, but deeply enough nevertheless to sense at least the rule of fixed necessity... what is still lacking here is a grasp of the connections of profound generality, but not a knowledge of order itself.