Investors should focus on what they can control: costs, diversification, and time horizon.

The boundaries which divide Life from Death are at best shadowy and vague. Who shall say where the one ends， and the other begins？

如果你认为你理解了量子力学，那么你并没有真正理解量子力学。

I think the most important thing in life is to be able to look at yourself in the mirror and feel good about who you are.