Music is part of us, and either ennobles or degrades our behavior.

In every kind of adversity, the bitterest part of a man's affliction is to remember that he once was happy.

Contemplate the extent and stability of the heavens, and then at last cease to admire worthless things.

The science of numbers ought to be preferred as an acquisition before all others, because of its necessity and because of the great secrets and other mysteries which there are in the properties of numbers. All sciences partake of it, and it has need of none.

He who has calmly reconciled his life to fate, and set proud death beneath his feet, can look fortune in the face, unbending both to good and bad; his countenance unconquered.

One's virtue is all that one truly has, because it is not imperiled by the vicissitudes of fortune.

Nothing is miserable unless you think it so.