Thinking is easy, acting is difficult, and to put one's thoughts into action is the most difficult thing in the world.
思考是容易的，行动是困难的，把一个人的思想付诸行动是世界上最困难的事情。
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Thinking
思考是容易的，行动是困难的，把一个人的思想付诸行动是世界上最困难的事情。