The propriety of some persons seems to consist in having improper thoughts about their neighbors.

His mind is so open - so open that ideas simply pass through it.

The world is the best of all possible worlds, and everything in it is a necessary evil.

We say that a girl with her doll anticipates the mother. It is more true, perhaps, that most mothers are still but children with playthings.

The Self has turned out to mean so many things, to mean them so ambiguously, and to be so wavering in its application, that we do not feel encouraged.

Reason teaches us that what is good is good for something, and that what is good for nothing is not good at all.

The deadliest foe to virtue would be complete self-knowledge.