There is a ... matter - much more valuable and divine than natural philosophy . ... On this matter I must speak to you in enigmas.

Perfect wisdom has four parts: Wisdom, the principle of doing things aright. Justice, the principle of doing things equally in public and private. Fortitude, the principle of not fleeing danger, but meeting it. Temperance, the principle of subduing desires and living moderately.

Necessity, who is the mother of our invention.

Love is the joy of the good, the wonder of the wise, the amazement of the gods; desired by those who have no part in him, and precious to those who have the better part in him.

The deity on purpose [sings] the liveliest of all lyrics through the most miserable poet.

Arithmetic is a kind of knowledge in which the best natures should be trained, and which must not be given up.

Madness comes from God, whereas sober sense is merely human.