If we have come to think that the nursery and the kitchen are the natural sphere of a woman, we have done so exactly as English children come to think that a cage is the natural sphere of a parrot: because they have never seen one anywhere else.

People become attached to their burdens sometimes more than the burdens are attached to them.

Murder and capital punishment are not opposites that cancel one another, but similars that breed their kind. It is the deed that teaches not the name we give it.

There was only one virtue, pugnacity; only one vice, pacifism. That is an essential condition of war.

The reasonable man will adjust to the demands of his environment. The unreasonable man expects his environment to adjust to his own needs. Therefore, all progress depends upon the unreasonable man.

It is well to be off with the old woman before you're on with the new.

What is wrong with priests and popes is that instead of being apostles and saints, they are nothing but empirics who say I know instead of I am learning, and pray for credulity and inertia as wise men pray for skepticism and activity.