Beauty is not an end in itself, but the result of a perfect solution to a problem.
广义相对论已经通过了我们所有的测试，甚至在超大质量黑洞附近也是如此。
每一颗种下的种子都是对未来的承诺——一个食品安全与生态健康密不可分的未来。
If one only wished to be happy, this could be easily accomplished; but we wish to be happier than other people, and this is always difficult, for we believe others to be happier than they are.
