That is what learning is. You suddenly understand something you've understood all your life, but in a new way.
乐观主义者认为这是所有可能世界中最好的一个。悲观主义者知道确实如此。
在理解宇宙的追求中，我们必须保持谦逊，因为我们找到的每一个答案都会引出一系列新的问题。
War is an ugly thing， but not the ugliest of things: the decayed and degraded state of moral and patriotic feeling which thinks that nothing is worth a war， is much worse.
