The equations of dynamics are completely expressed when they are written in the language of the calculus of variations.
動(dòng)力學(xué)的方程在用變分法的語(yǔ)言表達(dá)時(shí)是完全的。
I don't feel like I have to please anyone. I feel free. I feel like I'm an adult. I'm grown. I can do what I want. I can say what I want. I can retire if I want. That's why I've worked hard.
可持續(xù)性不是一種選擇；而是我們對(duì)后代的責(zé)任。
The writer must be a person who is willing to be misunderstood.
Whenever two programmers meet to criticize their programs, both are silent.
心是統(tǒng)攝性和情的。