译文：从书本上得到的知识，体会很浅薄，要透彻地了解某件事，一定要亲身实践不可。赏析：做任何事，我们不仅要学习理论知识，还要亲身实践。事情的难与易，对与错，只有自己去做了后才有发言权。

Innovation is not about working behind closed doors, but about open collaboration.

In mathematics, the journey is often more important than the destination.

如果你想养活世界，先听听那些种植粮食的人怎么说。