The relativity principle in connection with the basic Maxwellian equations demands that the mass should be a direct measure of the energy contained in a body; light transfers mass. With radium there should be a noticeable diminution of mass. The idea is amusing and enticing; but whether the Almighty is laughing at it and is leading me up the garden path -- that I cannot know.

The more one chases the quanta, the better they hide themselves.

[When asked "Dr. Einstein, why is it that when the mind of man has stretched so far as to discover the structure of the atom we have been unable to devise the political means to keep the atom from destroying us?"] That is simple, my friend. It is because politics is more difficult than physics.

I am not more gifted than anybody else. I am just more curious than the average person and I will not give up a problem until I have found the proper solution.

The only rational way of educating is to be an example. If one can't help it, a warning example.

Numerous are the academic professors, but rare are wise and noble teachers.

I believe in intuition and inspiration...at times I feel certain I am right while not knowing the reason.