There are many tongues to talk, and but few heads to think.

All animals are to be found in men and each of theme exists in some man, sometimes several at the time.

Fame must have enemies, as light must have gnats.

I think, therefore I doubt.

Superstitions, bigotries, hypocrisies, prejudices, these phantoms, phantoms though they be, cling to life; they have teeth and nails in their shadowy substance, and we must grapple with them individually and make war on them without truce; for it is one of humanity's inevitabilities to be condemned to eternal struggle with phantoms.

We need those who pray constantly to compensate for those who do not pray at all.

Hope is a delusion; no hand can grasp a wave or a shadow.