I don't think that you have any insight whatsoever into your capacity for good until you have some well-developed insight into your capacity for evil.
我不认为你对自己的行善能力有任何洞察，除非你对自己的邪恶能力有一些成熟的洞察。
译文：从深山里开采出来，经过千锤百炼，烈火焚烧也毫不在乎。就算粉身碎骨也不怕，只为在世上留下清白的名声。
I lack iniquity Sometimes to do me service.
真相很少是纯粹的，也从不简单。