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The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'
I paint the light that is reflected, not the light that is received.
成功不是终点,失败也不是致命的,重要的是继续前进的勇气。
That is what learning is. You suddenly understand something you've understood all your life, but in a new way.
The only way to avoid being miserable is not to have enough leisure to wonder whether you are happy or not.