The pursuit of knowledge is a journey that never ends.
——〈在广州岭南学堂的演说〉，1912年5月7日
历史感不仅包含对过去之过去的感知，还包含对过去之现在的感知。
过去是参考的地方，不是居住的地方。
解释：齐国是强国，利用它的强大进攻宋国，让他逞强，燕国就可以乘机打败齐国；齐国是大国，利用它的大国野心吞并宋国，增加土地，燕国就可以乘机进攻。
If you desperately need a job， you are just another problem for a boss； if you can solve many of the problems the boss has right now， you are hired. To be hired， think like your boss.
Innovation is not the goal but a means to ultimately create value for customers.
Sometimes, silence is more powerful than words.