Was vernünftig ist， das ist Wirklich； und was wirklich ist，das ist vernünftig.
True progress comes when industry and environmentalists work together, not against each other.
追求数学知识是一段永无止境的旅程；总有更多的东西等待发现和理解。
聪明好学，不以向地位低下的人请教为耻，所以称他为“文”。
永远不要让恐惧决定你的未来。
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.