We don't inherit the ocean from our ancestors; we borrow it from our children.

The streets were dark with something more than night.

整体是虚假的。

尿素合成是一个幸运的发现，但它开辟了一个新的研究领域。

真正的领导力意味着做出平衡短期收益和长期愿景的艰难决定。