理性
To be like God， and to follow after Him， is the business and happiness of rational creatures.
The natural and moral world is the two-fold object of man's rational care.
Love is an irrational decision.
A law of nature， lex naturalis， is a precept or general rule found out by reason， by which a man is forbidden to do that which is destructive of his life or takes away the means of preserving the same.
The rules of morality are not the conclusion of our reason.
Reason is， and ought only to be the slave of the passions， and can never pretend to any other office than to serve and obey them.
Reason is the sovereign of all.
It has been said that man is a rational animal. All my life I have been searching for evidence which could support this.
