The difference between genius and stupidity is that genius has its limits.

国际政治是一项残酷而危险的事务，而且很可能继续保持这种状态。

他呢，狗嘴吐不出象牙。

I'm not a perfect person, but I'm trying to be better every day.

The world always seems brighter when you've just made something that wasn't there before.

唤醒天才的是困难。

【释义】评定有大功劳的人，不应计较他的小过错；推举有大善行的人，不应挑剔他的小毛病。