成功的关键是在生活的各个方面不断成长。
人生只有一次，让我们勇敢地生活，不留遗憾。
随着我们深入量子世界，我们发现拓扑不仅仅是数学上的好奇，而是自然界的一个基本方面。
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.