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 is virtuous is wise; and he who is wise is good; and he who is good is happy.

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

Give me Thy light, and fix my eyes on Thee!

If there is a God, whence proceed so many evils? If there is no God, whence cometh any good?

For in all adversity of fortune the worst sort of misery is to have been happy.

Music is so naturally united with us that we cannot be free from it - even if we so desired.