I don't believe in luck. I believe in preparation meeting opportunity.

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.

The best thing about being a writer is that you get to live in the world you create.

"The beauty of life is in its unpredictability; it's what makes it worth living."

最好的书是那些挑战你的书。

不要担心你在数学上遇到的困难；我敢保证我遇到的困难比你还大得多。