Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.

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.

I don't believe in taking the right decisions. I take decisions and then make them right.

被世人称为不道德的书，其实是揭示了世界自身的羞耻。