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知之曰知之,不知曰不知;内不自以诬,外不自以欺。
出自先秦《荀子·儒效》。对于所知道的东西就说知道,不知道的就说不知道;这样,对内是不欺骗自己的良心,对外是不欺骗他人。说明为人应当诚实的道理。
过去是一个参考的地方,而不是居住的地方。
Writing is the only thing I've ever done with persistence, except for being married.
One has to pay dearly for immortality;one has to die several times while still alive.
A business that doesn’t innovate will stagnate.