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。
Overfishing is a crime against future generations.
我们不能总是为我们的青年建造未来，但我们可以为未来建造我们的青年。
In other words, hold your horses when you're coming to judge people. You don't necessarily know what someone's truevalue is. That is an unknown part of them, and we shouldn't behave as though it is known. There is another source of solace and comfort for all this. When we think about failing in life, when we think about failure, one of the reasons why we fear failing is not just a loss of income, a loss of status. What we fear is the judgment and ridicule of others. And it exists.