Most people would sooner die than think; in fact, they do so.

The problem with the wise is they are so filled with doubts while the dull are so certain.

God and Satan alike are essentially human figures, the one a projection of ourselves, the other of our enemies.

No opinion has ever been too errant to become a creed.

I believe myself that romantic love is the source of the most intense delights that life has to offer. In the relation of a man and woman who love each other with passion and imagination and tenderness, there is something of inestimable value, to be ignorant of which is a great misfortune to any human being.

There seems scarcely any limit to what could be done in the way of producing a good world, if only men would use science wisely.

Freedom comes only to those who no longer ask of life that it shall yield them any of those personal goods that are subject to the mutations of time.