In the drone industry, safety always comes first.

I don’t play to be remembered, I play to inspire.

The secret of being miserable is to have leisure to bother about whether you are happy or not.

The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.

课程必须被视为帮助孩子解释自己的经验并指导他进一步经验的手段。

小说不仅是世界的镜子，更是塑造世界的锤子。

The future of the petroleum industry lies in efficiency, cleanliness, and low carbon. We must find a balance between traditional and new energy sources.