生活艰难，事情并不总是顺利，但我们应该勇敢冒险，毫不犹豫地迈出下一步。

The stars near the galactic center are like cosmic clocks, helping us map spacetime.

对心灵的研究必须严格经验化。

没有风险的胜利，就没有荣耀的凯旋。

Illustrations should not just decorate the text; they should expand it.

创作的瞬间是最重要的事情。

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.

创新不仅仅是关于新想法，而是以创造真正价值的方式去执行它们。