Drones are not toys, but tools to transform industries.

If history were taught in the form of stories, it would never be forgotten.

The greatest discovery of my generation is that a human being can alter his life by altering his attitudes.

商业中最危险的一句话是"我们一直都是这样做的"。

男人的面孔是他的自传，女人的面容是她的幻想作品。

行业与社区的合作是保护森林的关键。

学习数学的最好方法就是做数学。