. . . Then anyone who leaves behind him a written manual, and likewise anyone who receives it, in the belief that such writing will be clear and certain, must be exceedingly simple-minded. . . .

If we are to keep our flock at the highest pitch of excellence, there should be as many unions of the best of both sexes, and as few of the inferior as possible, and that only the offspring of the better unions should be kept.

Many men are loved by their enemies, and hated by their friends, and are the friends of their enemies, and the enemies of their friends.

Your dog is your only philosopher.

Is it not the excess and greed of this and the neglect of all other things that revolutionizes this constitution too and prepares the way for the necessity of a dictatorship?

Those who intend on becoming great should love neither themselves or their own things, but only what is just, whether it happens to be done by themselves or others.

As the builders say, the larger stones do not lie well without the lesser.