一本好书是通往想象世界的魔法之门。
Sustainability isn't an option; it's a necessity for survival.
过去是一个异国他乡；他们在那里行事不同。
There is no shortcut in science, only down-to-earth work.
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.