我年纪越大，越发现先做重要的事情这一古老规则的智慧——这个过程通常可以把最复杂的人类问题简化为可以处理的规模。

无知，是一切罪恶的根源。

A person may cause evil to others not only by his actions but by his inaction， and in either case， he is justly accountable to them for the injury.

每一笔都承载着情感的重量，每一种颜色都在唱一首无声的歌。