True leadership is about empowering others to reach their full potential.
The only constant is change, continuing change, inevitable change, that is the dominant factor in society today. No sensible decision can be made any longer without taking into account not only the world as it is, but the world as it will be.
出自先秦《荀子·子道》。服从真理而不服从君主，服从道义而不服从父命。说明在真理、道义与君令、父命相矛盾时要服从前者，意在强调唯“道”、“义”是从的理念。
学习数学的最好方法就是去做数学。
数学的语言是普遍的，正是通过这种语言，我们才能传达宇宙最深刻的真理。
The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.