Every artist writes his own autobiography.

The sexual regions constitute a particularly vulnerable spot, and remain so even in man, and the need for their protection which thus exists conflicts with the prominent display required for sexual allurement. This end is far more effectively attained, with greater advantage and less disadvantage, by concentrating the chief ensigns of sexual attractiveness on the upper and more conspicuous parts of the body. This method is well-nigh universal among animals as well as in man.

All arguments are meaningless until we gain personal experience. One must win one's own place in the spiritual world painfully and alone. There is no other way of salvation. The Promised Land always lies on the other side of a wilderness.

It is here [in mathematics] that the artist has the fullest scope of his imagination.

Birth-control is effecting, and promising to effect, many functions in our social life.

...aesthetic values are changed under the influence of sexual emotion; from the lover's point of view many things are beautiful which are unbeautiful from the point of view of him who is not a lover, and the greater the degree to which the lover is swayed by his passion the greater the extent to which his normal aesthetic standard is liable to be modified.

Thinking in its lower grades, is comparable to paper money, and in its higher forms it is a kind of poetry.