Friends can come and go, but banners hang forever.
朋友可以来来去去,但精神却永远常驻。
真相常常比小说更离奇,但小说是我们找到真相的地方。
The market is always right; it's your job to interpret it correctly.
自适应控制的核心是从经验中学习并相应地调整控制器。