The gods have not revealed all things from the beginning to mortals, but, by seeking, men find out better in time.
我这一代人最伟大的发现是人类可以通过改变态度来改变生活。
一个社会的成功取决于其平衡个人自由需求与社会凝聚力需求的能力。
He who is not contented with what he has,would not be contented with what he would like to have.