Reason is a light that God has kindled in the soul.
All flatterers are mercenary, and all low-minded men are flatterers.
Money was established for exchange, but interest causes it to be reproduced by itself. Therefore this way of earning money is greatly in conflict with the natural law.
The soul becomes prudent by sitting and being quiet.
... There must then be a principle of such a kind that its substance is activity.
The state or political community, which is the highest of all, and which embraces all the rest, aims at good in a greater degree than any other, and at the highest good.