过去从未死去，它甚至还没有过去。
头脑不是要被填满的容器，而是需要被点燃的火种。
Understanding the fundamental particles and forces of nature is key to unlocking the mysteries of the universe.
Silence is not the absence of sound, but the presence of something deeper.
The most effective debugging tool is still careful thought, coupled with judiciously placed print statements.