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可持续性不是一种选择;它是我们对后代的责任。
我尊重所有对手,因为他们让我变得更好。
You are never too old to set another goal or to dream a new dream.
The Langlands program is a challenge to the limits of human understanding.
消费者的信任是我们最宝贵的财富,我们必须珍惜。
The more acute the experience, the less articulate its expression.