Children, after being limbs of Satan in traditional theology and mystically illuminated angels in the minds of educational reformers, have reverted to being little devils; not theological demons inspired by the evil one, but scientific Freudian abominations inspired by the unconscious.

What has human happiness to do with morals? The object of morals is not to make people happy.

In his youth, Wordsworth sympathized with the French Revolution, went to France, wrote good poetry and had a natural daughter. At this period, he was a bad man. Then he became good, abandoned his daughter, adopted correct principles and wrote bad poetry.

The rules of logic are to mathematics what those of structure are to architecture.

Protagoras did not know if the gods exist, but he held in any case they ought to be worshiped. Philosophy, according to him, had nothing edifying to teach, and for the survival of morals we must rely upon the thoughtlessness of the majority and their willingness to believe what they had been taught.

Of all forms of caution, caution in love is perhaps the most fatal to true happiness.

Some people would rather die than think.