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数学研究是一次进入未知的旅程,每一次发现都为新的谜题打开了大门。
The old believe everything, the middle aged suspect everything, the young know everything.
心要安放在身体里(指心要专注内守)。
Your so-called boss may own the clock that taunts you from the wall, but, my friends, the hour is yours.