In men of more ordinary talents and capacity, the social virtues become, if possible, still more essentially requisite
 David Hume, An Enquiry Concerning the Principles of Morals (1751). copy citation

Context

“YOU FORGET, cries the dying hero, who had heard all, YOU FORGET THE MOST EMINENT OF MY PRAISES, WHILE YOU DWELL SO MUCH ON THOSE VULGAR ADVANTAGES, IN WHICH FORTUNE HAD A PRINCIPAL SHARE. YOU HAVE NOT OBSERVED THAT NO CITIZEN HAS EVER YET WORNE MOURNING ON MY ACCOUNT. [Plut. in Pericle] In men of more ordinary talents and capacity, the social virtues become, if possible, still more essentially requisite; there being nothing eminent, in that case, to compensate for the want of them, or preserve the person from our severest hatred, as well as contempt. A high ambition, an elevated courage, is apt, says Cicero, in less perfect characters, to degenerate into a turbulent ferocity.” source