Adaptive control is about learning from experience and adjusting the controller accordingly.
自适应控制的核心是从经验中学习并相应地调整控制器。
被宽恕只是礼物的一半，另一半是我们也能宽恕。
——〈在香港大学的演说〉（又名〈革命思想之产生〉），1923年2月19日
世界上最好和最美丽的东西是看不见甚至摸不着的——它们必须用心去感受。
The most effective way to destroy people is to deny and obliterate their own understanding of their history.
When an object is lost， 95% of the time it is hiding within arm’s reach of where it was last seen. Search in all possible locations in that radius and you’ll find it.
当你不再担心别人怎么想的那一刻，你就自由了。