The most important quality in a scientist is persistence.
我认为节俭驱动创新,正如其它约束驱动创新一样。要从紧闭盒子里出来,只有靠自己创造一条出路。
自动控制的根本问题是在存在干扰的情况下维持期望状态。
The greatest happiness is to know the source of unhappiness.
The only way to get to the top of the ladder is to climb it step by step.
记忆不是忠实的记录;它是对过去的主动重建。
No individual has any right to come into the world and go out of it without leaving behind him distinct and legitimate reasons for having passed through it.