My life has no script; everything is improvisation.
我的人生没有剧本，一切都是即兴。
The lion doesn't care about the opinions of the sheep.
每一本书都是通往另一个世界的门。
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.
Intelligence is the ability to adapt to change.
The interplay between discrete and continuous mathematics is where some of the most interesting problems lie.
When I got to 40 or so... I had the sense when I looked back over my life I would actually see a mess of decisions， a few of which I had thought about， some of which I had sort of stumbled on， and many that I had no control over whatsoever.
