我们不是从祖先那里继承了地球,而是从子孙那里借来的。
观察的个体数量越多,个体的身体或道德特性就越容易被抹去,从而使社会赖以存在和保存的普遍事实占据主导地位。
The first task is to understand the problem, the second to find a solution, and the third to carry it out.