如果你是胆小鬼，你就是自己最大的敌人；如果你是勇敢者，你就是自己最好的朋友。

You are the greatest enemy if you are a coward, but if you are brave, you are your greatest friend.

youdao

但是，如果向马克·吐温所说的那样“人类只不过是一群胆小鬼”，那么你得需要相当大的勇气来真正承认这一点。

But if, as Mark Twain said, "the human race is a race of cowards", you have to be a pretty brave one to actually admit it.

youdao