如果你想让人做某事,就让它变得简单。
If you want people to do something, make it easy.
行不义之事永远不正当,不能以恶报恶,遭受恶行时也不可通过作恶来自我防卫。
The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.