父子之间要亲爱,君臣之间要有礼义,夫妇之间要挚爱但还要有内外之别,老少之间有尊卑之序,朋友之间要有诚信之德。
Strategy is about making choices, trade-offs; it's about deliberately choosing to be different.
我看到了,我忘记了;我听到了,我记住了;我做过了,我理解了。