I shall never believe that God plays dice with the world.
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.
The only thing more dangerous than ignorance is arrogance

Whoever undertakes to set himself up as a judge of Truth and Knowledge is shipwrecked by the laughter of the gods.
Confusion of goals and perfection of means seems, in my opinion, to characterize our age.
Strive not to be a success, but rather to be of value.
Science without religion is lame, religion without science is blind.
Sometimes one pays most for the things one gets for nothing.
If you are out to describe the truth, leave elegance to the tailor.

The grand aim of all science is to cover the greatest number of empirical facts by logical deduction from the smallest number of hypotheses or axioms.
Everything should be made as simple as possible, but not simpler.
There is no logical way to the discovery of these elemental laws. There is only the way of intuition, which is helped by a feeling for the order lying behind the appearance.
The value of a man should be seen in what he gives and not in what he is able to receive.