看了一篇Letter to Investors,结果象上了一堂哲学课 - 不敢擅专，特抄来共享：
Knowledge is not what you know but certainty in what you do not.
Volatility is cheap and expansive at the same time.
Fear is a better reason to buy than fundamentals.
Risk-free assets are risky.
Common sense says do not trust your common sense.
