我们之所以能够感知事物的变化,是因为单子在无限的变化中保持了稳定的内在本质。
The world is full of willing people; some willing to work, the rest willing to let them.
森林的真正价值不能仅用木材体积来衡量;它的价值在于它所维持的生命。
There is no such thing as a quality problem. There are only problems of people not doing what they are supposed to do.