It is only the great men who are truly obscene. If they had not dared to be obscene, they could never have dared to be great.

It has always been difficult for Man to realize that his life is all an art. It has been more difficult to conceive it so than to act it so. For that is always how he has more or less acted it.

The average husband enjoys the total effect of his home but is usually unable to contribute any of the details of work and organisation that make it enjoyable.

Those persons who are burning to display heroism may rest assured that the course of social evolution will offer them every opportunity.

I regard sex as the central problem of life. And now that the problem of religion has practically been settled, and that the problem of labor has at least been placed on a practical foundation, the question of sex—with the racial questions that rest on it—stands before the coming generations as the chief problem for solution. Sex lies at the root of life, and we can never learn to reverence life until we know how to understand sex.

All the art of living lies in a fine mingling of letting go and holding on.

Einstein is notmerely an artist in his moments of leisure and play, as a great statesman may play golf or a great soldier grow orchids. He retains the same attitude in the whole of his work. He traces science to its roots in emotion, which is exactly where art is also rooted.