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心智是大脑的功能。
Anything is possible, I don't believe in limits.
数学是一门活生生的学科,随着新的思想和发现不断演变。
Pain is temporary. It may last a minute, or an hour, or a day, or a year, but eventually it will subside and something else will take its place. If I quit, however, it lasts forever.