If you want the answer to anything, go sit in Nature for awhile

The difference between what the most and the least learned people know is inexpressibly trivial in relation to that which is unknown.

Without the sense of fellowship with men of like mind... life would have seemed to me empty.

The most superior of scientific goals is to embrace a maximum of experiment with a minimum of hypotheses.

If you're not sure why you're doing something, you can never do enough of it. Imagination is more important than knowledge.

The splitting of the atom has changed everything except for how we think.

I would teach peace rather than war, love rather than hate.