"They think it is an evidence of true wisdom for a man to pursue his own advantage as far as the laws allow it, they account it piety to prefer the public good to one's private concerns, but they think it unjust for a man to seek for pleasure by snatching another man's pleasures from him; and, on the contrary, they think it a sign of a gentle and good soul for a man to dispense with his own advantage for the good of others,