The spirit of man is more important than mere physical strength, and the spiritual spark in man can be fanned into flame.

译文：锦官城里每日音乐声轻柔悠扬，一半随着江风飘去，一半飘入了云端。这样的乐曲只应该天上有，人间里哪能听见几回?

The only way to learn mathematics is to do mathematics.

解释：大部分鸟类都是雄性的，而雌鸽却是雌性的，说明了鸟类性别的特殊性。

可持续发展需要在经济增长与环境保护之间取得平衡。

The companies that will thrive are those that see change as an opportunity, not a threat.