Moral qualities are so constituted as to be destroyed by excess and by deficiency . . .

Why is it that all men who are outstanding in philosophy, poetry or the arts are melancholic?

1 is not prime, by definition. 2 is an unnatural prime, 4 is an unnatural prime, and 6 is an unnatural prime. All other natural primes cannot be unnatural primes.

Man is the metre of all things, the hand is the instrument of instruments, and the mind is the form of forms.

It is not easy for a person to do any great harm when his tenure of office is short, whereas long possession begets tyranny.

[Meanness] is more ingrained in man's nature than Prodigality; the mass of mankind are avaricious rather than open-handed.

The angry man wishes the object of his anger to suffer in return; hatred wishes its object not to exist.