We are never the same with others as when we are alone. We are different, even when we are in the dark.

你必须熬过一些糟糕的日子，才能赢得生命中最美好的时光。

矿工的头盔不仅保护头部——它还象征着辛勤工作的尊严。

The most important property of a program is whether it accomplishes the intention of its user.