战争是一件丑陋的事情，但不是最丑陋的事情：道德和爱国情感的腐化和堕落状态认为没有什么事情值得一场战争，这要糟糕得多。
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.
可持续性不是成本——而是对韧性和长期增长的投资。
学习的最好方法就是教。
Open cooperation is an important path for technological progress.