Science is the attempt to make the chaotic diversity of our sense-experience correspond to a logically uniform system of thought.

Mysticism is in fact the only criticism people cannot level against my theory.

If I were not a physicist, I would probably be a musician. I often think in music. I live my daydreams in music. I see my life in terms of music.

Whether or not you can observe a thing depends upon the theory you use. It is the theory which decides what can be observed.

Do you remember how electrical currents and 'unseen waves' were laughed at? The knowledge about man is still in its infancy.

[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.

A successful man is he who receives a great deal from his fellow men, usually incomparably more than corresponds to his service to them. The value of a man, however, should be seen in what he gives and not in what he is able to receive.