——二个叔父孙学成、孙观成早年均因为贫穷必须远赴他乡做工谋生，在孙出生前后因病去世，孙看到清朝绩弱不振，受到外国强敌欺侮，增加自己从事反清革命的动机
True leaders are not those who give orders, but those who can inspire others to follow voluntarily.
素描是艺术的诚实。没有欺骗的可能。它要么好，要么坏。
To safeguard national independence, we must strengthen national unity.
The only real prison is fear, and the only real freedom is freedom from fear.
All men are liable to error; and most men are, in many points, by passion or interest, under temptation to it.