As far as possible, join faith to reason.

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.

For in every ill-turn of fortune the most unhappy sort of unfortunate man is the one who has been happy

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

Nothing is miserable but what is thought so, and contrariwise, every estate is happy if he that bears it be content.

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

...Whose souls, albeit in a cloudy memory, yet seek back their good, but, like drunk men, know not the road home.