The world is all the richer for having a devil in it, so long as we keep our foot upon his neck.

The world is all the richer for having a devil in it, so long as we keep our foot upon his neck.

只要我们把脚踩在他的脖子上，这个世界就会因为有魔鬼而更加富有。

-- William James 威廉·詹姆斯