We've done price elasticity studies, and the answer is always that we should raise prices. We don't do that, because we believe -- and we have to take this as an article of faith -- that by keeping our prices very, very low, we earn trust with customers over time, and that that actually does maximize free cash flow over the long term.

现代性的最大挑战不是技术，而是如何在快速变化的世界中保持人的尊严。

The best traders are those who can control their emotions.

模糊集的概念为构建一个在许多方面与普通集框架平行的概念框架提供了一个方便的出发点。

The sun shone, having no alternative, on the nothing new.

世界是如此不可预测。事情突然发生，出乎意料。我们想要感觉到我们能够控制自己的存在。