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I don’t play for the money or the fame. I play because I love tennis.

Human cognition is best understood as a hierarchy of information processing levels.

Don't be afraid to make mistakes. If you're not making mistakes, you're not trying hard enough.

我寫歌是為了治愈自己，也治愈別人。

Science is the playground of the taxonomist.

當九月結束時叫醒我

國家的繁榮建立在人民的勤勞之上。