一个测量可用的常识：手臂伸直两测指尖的距离就是你的身高。
创新的秘密在于知道如何把你的智谋藏而不露。
预测未来的最好方法就是创造未来。
我们的二十岁是成年的决定性十年。
The universe would look to a two-dimensional creature who spend its life moving on the service of what turned out to be a globe， it could travel for millions of years and would always return to its starting point， it would never be conscious of what was above it or beneath it.
Safety isn't a cost—it's an investment in our most valuable resource: people.
