The Intellect engages us in the pursuit of Truth. The Passions impel us to Action.

The divinity who rules within us, forbids us to leave this world without his command.

Take from a man his reputation for probity, and the more shrewd and clever he is, the more hated and mistrusted he becomes.

I do not understand what the man who is happy wants in order to be happier.

The mind becomes accustomed to things by the habitual sight of them, and neither wonders nor inquires about the reasons for things it sees all the time.

The study and knowledge of the universe would somehow be lame and defective were no practical results to follow.

Friendship makes prosperity more brilliant, and lightens adversity by dividing and sharing it.