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I am a prisoner of my own mind, but art sets me free.
我是自己心灵的囚徒,但艺术让我自由。
If economists could manage to get themselves thought of as humble, competent people on a level with dentists, that would be splendid.
【释义】:人在幼年时精神专注,成年后心思分散,教育要趁早,别错过时机。  
Do not put forward anything that you cannot prove by experimentation.