谗言不会自己来，而是因为心中有猜疑才来；离间的话不会自己钻入，而是因为有了缝隙才来。

The line between good and evil is permeable and anyone can cross it when pushed by circumstances.

The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt; and the profoundest wisdom, to know when it ought to be resisted, and when it be obeyed.

人类今天拥有自我毁灭的手段——要么是在完全疯狂的发作中，即在一场大战中，通过短暂的破坏发作，要么是通过对原子技术的粗心处理，通过缓慢的中毒和遗传结构的恶化过程。