If you can’t tell what you desperately need， it’s probably sleep.

Trend-following is not such a good model. It’s simply eroded. Things change and being able to adjust is what made Mr. Simons so successful. “Statistic predictor signals erode over the next several years； it can be five years or 10 years. You have to keep coming up with new things because the market is against us. If you don’t keep getting better， you’re going to do worse.

西西弗斯的神话

生存可以总结为三个字——永不放弃。这就是它的核心。只要继续尝试。

逝者是我们的老师，如果我们懂得倾听。

To understand chemistry at its most fundamental level, we must look at the dance of electrons in molecules.