动力学的方程在用变分法的语言表达时是完全的。

法律是权力的政治。

I've learned that you can't control everything, and sometimes you just have to let go.

Every barrel of oil we produce comes with a commitment to do it better than before.

The market is never wrong; opinions often are.

如果人们有时不做愚蠢的事情，就不会有聪明的事情发生。