国际政治是一个残酷而无情的舞台，各国不断努力最大化自己的权力和安全。
International politics is a brutal and unforgiving arena, where states constantly strive to maximize their power and security.
未经测试的程序是无法正常工作的。
The true artist will let his wife starve, his children go barefoot, his mother drudge for his living at seventy, sooner than work at anything but his art.
我们对未来持乐观态度，但我们知道仅靠乐观是不够的。
有时候你做了所有正确的事情，事情仍然会出错。关键是要永远不要停止做正确的事情。
未来的农业必须建立在今天的教训之上。