最好的插画是那些为读者的想象力留出空间的。
数学的快乐来自于为理解而奋斗。
我不相信后悔。一切都有原因。
A loving heart is the truest wisdom.
创造力是在看似无关的事物之间建立联系。
The biggest risk is not taking any risk. In a world that's changing quickly, the only strategy that is guaranteed to fail is not taking risks.
The only reason people want to be masters of the future is to change the past.
One has to pay dearly for immortality；one has to die several times while still alive.
Good econometrics is like good carpentry—it's all about using the right tool for the job.