It seems to me that the idea of a personal God is an anthropological concept which I cannot take seriously. I also cannot imagine some will or goal outside the human sphere... Science has been charged with undermining morality, but the charge is unjust. A man's ethical behavior should be based effectually on sympathy, education, and social ties and needs; no religious basis is necessary. Man would indeed be in a poor way if he had to be restrained by fear of punishment and hope of reward after death.

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

The wing structure of the hornet, in relation to its weight, is not suitable for flight, but he does not know this and flies anyway.

I know that the most joy in my life has come to me from my violin.

Pure mathematics is, in its way, the poetry of logical ideas.

Qualities I sought in a scientific theory were naturalness, inner perfection and logical simplicity from an aesthetic approach.

I know little about nature and hardly anything about men.