I live my daydreams in music I see my life in terms of music. I get most joy in life out of music.

Strenuous intellectual work and the study of God's Nature are the angels that will lead me through all the troubles of this life with consolation, strength, and uncompromising rigor.

Experience is knowledge. All the rest is information.

Everything is determined, the beginning as well as the end, by forces over which we have no control. It is determined for the insect, as well as for the star. Human beings, vegetables, or cosmic dust, we all dance to a mysterious tune, intoned in the distance by an invisible piper.

The field is the sole influence of the particle.

If a theory can not be explained to a child, then the theory is probably worthless.

People will not disarm step by step; they will disarm at one blow or not at all.