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我一直以为人是慢慢变老的,其实不是,人是一瞬间变老的。
The number one organ of ridicule, nowadays, is the newspaper. If you open the newspaper any day of the week, it's full of people who've messed up their lives. They've slept with the wrong person, taken the wrong substance, passed the wrong piece of legislation -- whatever it is, and then are fit for ridicule. In other words, they have failed. And they are described as "losers." Now, is there any alternative to this? I think the Western tradition shows us one glorious alternative, which is tragedy.
Combinatorics is like the art of counting without actually counting.
The best time to plant a tree was 20 years ago. The second-best time is now.
What a caterpillar calls the end of the worldwe call a butterfly.
数学是给不同事物起相同名字的艺术。