An Enquiry Concerning The Principles Of Morals - App: pg. 180

The prudence explained in CICERO's Offices, is that sagacity, which leads to the discovery of truth, and preserves us from error and mistake. Magnanimity, temperance, decency, are there also at large discoursed of. And as that eloquent moralist followed the common received division of the four cardinal virtues, our social duties form but one head, in the general distribution of his subject.