Marriage is popular because it combines the maximum of temptation with the maximum of opportunity.

The reasonable man adapts himself to the world; the unreasonable one persists to adapt the world to himself. Therefore all progress depends on the unreasonable man.

It is the highest creatures who take the longest to mature, and are the most helpless during their immaturity.

Civilization is a disease produced by the practice of building societies with rotten material.

Women upset everything. When you let them into your life, you find that the woman is driving at one thing and you're driving at another.

You can be a thorough-going Neo-Darwinian without imagination, metaphysics, poetry, conscience, or decency. For 'Natural Selection' has no moral significance: it deals with that part of evolution which has no purpose, no intelligence, and might more appropriately be called accidental selection, or better still, Unnatural Selection, since nothing is more unnatural than an accident. If it could be proved that the whole universe had been produced by such Selection, only fools and rascals could bear to live.

If we women were particular about men's characters, we should never get married at all.