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People calculate too much think too little.
It's not what happens to us, but our response to what happens to us that hurts us.
We must be free not because we claim freedom, but because we practice it.
The only way to learn mathematics is to do mathematics.
我的目标是做一个好歌手,不是一个明星。
我不是天才,但是我在某些事情上很聪明,我就只关注这些事情。
The most formidable weapon against errors of every kind is reason.
Mathematics is a universal language that transcends cultural and linguistic barriers.