Man lives by imagination.

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.

Sex lies at the root of life, and we can never learn to reverence life until we know how to understand sex.

No act can be quite so intimate as the sexual embrace.

To live remains an art which everyone must learn, and which no one can teach.

The mother is really a more immediate parent than the father because one is born from the mother, and the first experience of any infant is the mother.

At the present day the crude theory of the sexual impulse held on one side, and the ignorant rejection of theory altogether on the other side, are beginning to be seen as both alike unjustified.