PID控制器的本质在于它能够根据系统的过去和现在状态预测其未来行为。

I didn't know that would happen. But this made me very hungry, literally. I couldn't be lazy.

There is no such thing as abstract art - all art is concrete in its own way.

The only constant in business is change.

Great things in business are never done by one person. They're done by a team of people.

The true discovery of America is before us. The true fulfillment of our spirit, of our people, of our mighty and immortal land is yet to come.

The discovery of the genetic code was a monumental step in understanding the molecular basis of life.