Short-term gains at the expense of the environment will always lead to long-term losses.

Order and simplification are the first steps toward the mastery of a subject.

游览过五岳之后，其他的山就没什么可看的了；而游览过黄山之后，连五岳也没什么可看的了

所有人都容易犯错；大多数人在许多方面，由于激情或利益，都会受到诱惑。