Where there is most labour there is not always most life.

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

Every ist writes his own autobiography.

The family only represents one aspect, however important an aspect, of a human being's functions and activities. A life is beautiful and ideal or the reverse, only when we have taken into our consideration the social as well as the family relationship.

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

There can be no sexual love without lust; but, on the other hand, until the currents of lust in the organism have been irradiatedas to affect other parts of the psychic organism--at the least the affections and the social feelings--it is not yet sexual love. Lust, the specific sexual impulse, is indeed the primary and essential element in this synthesis, for it alone is adequate to the end of reproduction, not only in animals but in men. But it is not until lust is expanded and irradiated that it develops into the exquisite and enthralling flower of love.

Men who know themselves are no longer fools. They stand on the threshold of the door of Wisdom.