自由的代价是永恒的警惕。
学习数学的唯一方法就是做数学。
The essence of mathematics lies in its freedom.
Success is about being happy with what you're doing.
说到底什么是时装潮流?从艺术的角度来看,它通常是一种丑陋形式的表达,以至于人们忍无可忍地每六个月便要把它修改一下。
The best decisions are made when you listen to both data and people.