Those whom we call ancient were really new in all things, and properly constituted the infancy of mankind.

There are vices which have no hold upon us, but in connection with others; and which, when you cut down the trunk, fall like the branches.

Curiosity is only vanity. Most frequently we wish not to know, but to talk. We would not take a sea voyage for the sole pleasure of seeing without hope of ever telling.

When everyone is moving towards depravity, no one seems to be moving, but if someone stops he shows up the others who are rushing on, by acting as a fixed point.

Thought makes the whole dignity of man; therefore endeavor to think well, that is the only morality.

When intuition and logic agree, you are always right.

Vanity is so secure in the heart of man that everyone wants to be admired: even I who write this, and you who read this.