任何经济理论的最终检验标准是它是否能改善现实世界的决策。
The ultimate test of any economic theory is whether it improves real-world decisions.
We do not learn from experience... we learn from reflecting on experience.
人は誰でも、自分だけの物語を持っている。
The motif is insignificant; what I want to represent is what lies between the motif and me.
Quality is not a dream; it is a reality.
追求数学知识是一场永无止境的冒险,充满了挑战、惊喜和解决不可解问题的满足感。
"Writing is easy: all you do is sit staring at a blank sheet of paper until drops of blood form on your forehead."