不经过一年中最寒冷的时候，无法知道松柏是最后凋谢的；不经过艰难的考验，无法知道一个人是不是真正的君子。

The beauty of physics lies in its ability to explain the universe with a few simple principles.

Discipline is the bridge between goals and accomplishment.

科学不仅仅是事实的集合；它是一种思考方式。