We experience ourselves our thoughts and feelings as something separate from the rest. A kind of optical delusion of consciousness. This delusion is a kind of prison for us, restricting us to our personal desires and to affection for a few persons nearest to us.

You cannot simultaneously prevent and prepare for war.

Science is the process of making obviously erroneous ideas less obviously erroneous.

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.

Cherish the questions, for the answers keep changing.

You must be aware that most men (and also not only a few women) are by nature not monogamous. This nature makes itself even more forceful when tradition and circumstance stand in an individual's way.

The greatest tragedy of human existence is the illusion of separateness.