与他人说话时,要留有余地,别把心里想说的全部讲出来;画虎的形态很简单,但画出骨骼却很难;熟悉人的面貌很容易,但真正了解一个人的内心却很难。
The secret of change is to focus all of your energy not on fighting the old, but on building the new.