The best time to plant a tree was 20 years ago; the second-best time is now.
在某种程度上,我们都是流亡者,寻找一个可以称之为家的地方。
相位裕度是系统在变得不稳定之前可以容忍的程度的度量。
I don't believe in luck, but I do believe in assigning value to things.