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.

每一本书都是一次旅程，每一次旅程都是一本书。

Sustainability isn't an option—it's a necessity for the future of agriculture.

最令人兴奋的发现往往来自关注意想不到的结果。