The task must be made difficult, for only the difficult inspires the noble-hearted.

可持续发展不仅仅是一个流行词，而是我们对后代的责任。

无常是生死的自然法则。

环境不是刺激的马赛克，而是一个力场，其中每个部分都与其他部分动态相关。

I don’t think about being the best in history. I think about being the best every day.

如果你想走得快，就一个人走。如果你想走得远，就一起走。