A good character carries with it the highest power of causing a thing to be believed.

Happiness is the highest good

The tyrant, who in order to hold his power, suppresses every superiority, does away with good men, forbids education and light, controls every movement of the citizens and, keeping them under a perpetual servitude, wants them to grow accustomed to baseness and cowardice, has his spies everywhere to listen to what is said in the meetings, and spreads dissension and calumny among the citizens and impoverishes them, is obliged to make war in order to keep his subjects occupied and impose on them permanent need of a chief.

What it lies in our power to do, it lies in our power not to do.

Prayers and sacrifices are of no avail.

Marriage is like retiring as a bachelor and getting a sexual pension. You don't have to work for the sex any more, but you only get 65% as much.

Something is infinite if, taking it quantity by quantity, we can always take something outside.