But in physics I soon learned to scent out the paths that led to the depths, and to disregard everything else, all the many things that clutter up the mind, and divert it from the essential. The hitch in this was, of course, the fact that one had to cram all this stuff into one's mind for the examination, whether one liked it or not.

If we have the courage to decide ourselves for peace we will have peace.

If A is a success in life, then A equals x plus y plus z. Work is x; y is play; and z is keeping your mouth shut

We have to do the best we are capable of. This is our sacred human responsibility.

One must shy away from questionable undertakings, even when they bear a high-sounding name.

Education is what remains after one has forgotten what one has learned in school.

The important thing is to never stop questioning. Never lose a holy curiosity.