On the Commonwealth
On the Commonwealth 1
Marcus Tullius Cicero (c. 106-43 B.C.)
Cicero was the great defender of the Roman republic and a master of oratory. The author of several books on politics, philosophy, and rhetoric, he was the first to speak of natural law as a moral or political law, and was an important influence on the Founders.
C. 54-51 B.C.
... True law is right reason, consonant with nature, spread through all people. It is constant and eternal; it summons to duty by its orders, it deters from crime by its prohibitions. Its orders and prohibitions to good people are never given in vain; but it does not move the wicked by these orders or prohibitions. It is wrong to pass laws obviating this law; it is not permitted to abrogate ...