不要过于自信，要时刻保持谦虚和谨慎。

21世纪被一种压倒性的有限性和疲惫感所压迫。

人的精神是世界上最宝贵的东西。

The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion.

预测往往反映的是预测者当前的知识和偏见，而非真实的未来。

华尔街拥有太多的财富和政治权力。