无人机的未来不是替代人，而是帮助人更好地完成工作。

模形式的算术是理解数论更深层次结构的关键。

Fear is a natural response, but courage is a choice. Choose to be brave.

The key is to set realistic customer expectations, and then not to just meet them, but to exceed them — preferably in unexpected and helpful ways.

如果你想知道一家公司的价值，看看它的股价。

电影摄影的可能性是无限的...比音乐或语言更加无限。