真正的幸福来自于对自己和他人的爱。
True happiness comes from love for oneself and others.
你们必须掌握许多知识,让它们在你们的头脑里形成一个思维框架,在随后的日子里能自动地运用它们。
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。
价格被遗忘后,质量仍会被长久记住。
The office of President is great, but the man who holds it is not.
The universe is a vast and mysterious place, and we are only beginning to understand its complexities.