无论什么时候，看到争论基于两个对立面进行时，要找到第三个面。

The labor which it would require to make a single one of these guns by hand would exhaust the patience and perseverance of any ordinary workman.

The 40% solution: The capacity to increase happiness is within our personal control.

我认为你能做的最好的事情就是忠于自己。