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.
没有证词足以证明奇迹，除非这证词的假设比它试图证明的事实更为奇迹。
大学不是实现特定目的或产生特定结果的机器；它是一种人类活动的方式。
学习数学的唯一方法就是做数学。
You can't go back and change the beginning, but you can start where you are and change the ending.
The individual investor should act consistently as an investor and not as a speculator.