Make women rational creatures, and free citizens, and they will quickly become good wives, and mothers; that is, if men do not neglect the duties of husbands and fathers.

Mental phenomena are nature's experiments in survival.

"To live is the rarest thing in the world. Most people exist, that is all."

译文：不管我们做怎样的人，一定不要趋炎附势，嫌贫爱富；不管我们从事什么行业，都不该有浮躁之心。赏析：谄媚权贵，奴颜婢膝，阿谀逢迎是做人的大忌，心浮气躁，左右摇摆是做事的大忌。不管我们身处何种环境，做人要正直无私，不骄不躁。

现代化学家不满足于仅仅成为化合物的制造者；他必须是自然的解释者。