The hours of folly are measured by the clock; but of wisdom, no clock can measure.

Prisons are built with stones of Law. Brothels with the bricks of religion.

How do you know but ev’ry Bird that cuts the airy way, Is an immense world of delight, clos’d by your senses five?

I see through my eyes, not with them.

Hold infinity in the palm of your hand.

The strongest poison ever known came from Caesar's laurel crown.

Innate ideas are in every man, born with him; they are truly himself. The man who says that we have no innate ideas must be a fool and knave, having no conscience or innate science.