软件开发中最重要的一个方面是明确你要构建什么。

When words leave off, music begins.

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.

我为我的身体感到非常自豪。

The best architecture comes from a dialogue between client and architect.