Generally speaking, envy, resentment, and self-pity are disastrous modes of thoughts.Self-pity gets fairly close to paranoia, and paranoia is one of the very hardest things to reverse.

不沉溺于过去，全力以赴面向未来。

想走得快，独自前行；想走得远，结伴同行。

The more I see of the representatives of the people, the more I admire my dogs.

数据是非常愚蠢的；它们不会告诉你任何关于因果关系的信息。