Good men seek it by the natural means of the virtues; evil men, however, try to achieve the same goal by a variety of concupiscences, and that is surely an unnatural way of seeking the good. Don’t you agree?
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.
