The art of leadership is saying no, not yes. It is very easy to say yes.
"Books so special and rare and yours that advertising your affection feels like a betrayal."
No matter how good you get you can always get better, and that's the exciting part.
Knowledge has value only insofar as it contributes to the liberation of humanity.
最危险的并非失败，而是自满。
Hatred is the most accessible and comprehensive of all the unifying agents.