"Never stop learning. The world is always changing, and you must change with it."
A book is a version of the world. If you do not like it, ignore it; or offer your own version in return.
The human being is not a thing among things; things determine each other, but the human being is ultimately self-determining.
我认为我一生中从未感到无聊。总有事情可以思考。
含泪问花，花不回答，乱红的花瓣飞过秋千远去。
译文：不能让智巧劳烦打扰我们的心境，不能让私利拖累我们的自身；把国家的治乱寄托在法术上，把是非的判断寄托在赏罚上。
在交易中，你必须对不确定性感到舒适。