True law is right reason in agreement with nature;...it summons to duty by its commands, and averts from wrongdoing by its prohibitions... It is a sin to try to alter this law, nor is it allowable to attempt to repeal any part of it, and it is impossible to abolish it entirely.
Marcus Tullius CiceroThis seems to be advanced as the surest basis for our belief in the existence of gods, that there is no race so uncivilized, no one in the world so barbarous that his mind has no inkling of a belief in gods.
Marcus Tullius CiceroFor how many things, which for our own sake we should never do, do we perform for the sake of our friends.
Marcus Tullius Cicero