Love, for too many men in our time, consists of sleeping with a seductive woman, one who is properly endowed with the right distribution of curves and conveniences and one upon whom a permanent lien has been acquired through the institution of marriage.

It is work, work that one delights in, that is the surest guarantor of happiness. But even here it is a work that has to be earned by labor in one's earlier years. One should labor so hard in youth that everything one does subsequently is easy by comparison.

The deepest personal defeat suffered by human beings is constituted by the difference between what one was capable of becoming and what one has in fact become.

... the main principle by which human beings must guide the future course of their development is love.

Man is the only 150 pound nonlinear servomechanism that can be wholly reproduced by unskilled labor.

For the person and for the species love is the form of behavior having the highest survival value.

All education should be directed toward the refinement of the individual's sensibilities in relation not only to one's fellow humans everywhere, but to all living things whatsoever.