解释：把利益给出去，就会有实惠返回来；把怨恨给出去，就会有祸害返回来。
真正的文学应该能够改变读者的生活。
An understanding of the natural world and what's in it is a source of not only a great curiosity but great fulfillment.
The power elite is composed of men whose positions enable them to transcend the ordinary environments of ordinary men and women; they are in positions to make decisions having major consequences.
孔子说，真正的知识是知道自己无知的程度。亚里士多德和苏格拉底也说过同样的话。这是一种可以传授或学习的技能吗？也许可以，只要你对结果有足够的兴趣......