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朋友一次问我世界上什么事最难。我说挣钱最难,他摇头。哥德巴赫猜想?他又摇头。我说我放弃,你告诉我吧。他神秘兮兮地说是认识你自己。
My friend once asked me what is hardest in the world. I said making money the hardest, he shook his head. Goldbach speculates? He shook his head again. I said I give up, you tell me. He said mysteriously to yourself.