成为英雄的最大障碍是怀疑自己是否会证明自己是个傻瓜；真正的英雄主义是抵制这种怀疑；最深刻的智慧是知道何时应该抵制，何时应该服从。
The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt; and the profoundest wisdom, to know when it ought to be resisted, and when it be obeyed.
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。
The existence of the natural world is the same kind of fact as the existence of any proposition.
