"The natural order among men is that women should be subject to men."

"But it is lawful for a husband to demand the marriage debt from his wife, even if she is unwilling, because she owes it to him by virtue of the marriage contract."

"To corrupt the faith, whereby the soul lives, is much graver than to counterfeit money, which supports temporal life."

"The perfection of human life consists in the knowledge of God."

"The natural law is nothing else than the rational creature's participation in the eternal law."