Once we realize that imperfect understanding is the human condition, there is no shame in being wrong, only in failing to correct our mistakes.

We are constantly refining our models to improve performance.

The balance between energy needs and environmental protection is the challenge of our time.

船舶自动转向的引入是一个相当困难的问题，但解决方案在于PID控制器的应用。

I don't believe in luck. I believe in hard work.

这个神奇的国家——一个不仅奇迹发生，而且奇迹不断发生的地方。

人们不买你做什么，他们买你为什么做。