We become just by the practice of just actions.

Education and morals will be found almost the whole that goes to make a good man.

Now that practical skills have developed enough to provide adequately for material needs, one of these sciences which are not devoted to utilitarian ends [mathematics] has been able to arise in Egypt, the priestly caste there having the leisure necessary for disinterested research.

Two characteristic marks have above all others been recognized as distinguishing that which has soul in it from that which has not - movement and sensation.

The science that studies the supreme good for man is politics.

Hence intellect[ual perception] is both a beginning and an end, for the demonstrations arise from these, and concern them. As a result, one ought to pay attention to the undemonstrated assertions and opinions of experienced and older people, or of the prudent, no less than to demonstrations, for, because the have an experienced eye, they see correctly.

The intention makes the crime.