理解计算的极限与理解数学的极限同样重要。
Sustainability isn't a choice anymore—it's a responsibility we owe to future generations.
I find myself always worrying about tomorrow...Then when tomorrow becomes today, I start worrying about tomorrow again...
对你的孩子好一点,因为他们未来会给你选养老院。
And America, too, is a delusion, the grandest one of all.
The most durable thing in writing is style, and style is the most valuable investment a writer can make with his time.