The world 🌏

The world is just like a wheel that rotates continuously without stop,which makes the day swaps its light with the night to get darkness. I don't literally mean the rotation of the earth on its axis but the switch of activities on earth. Human is just in the place of the world that rotates while their activities is like the day and night that changes always. That is:the rich may later become poor, the sick may later become healthy, the begger may later turn to be a giver, so no condition is permanent. Have a nice day guys, this happens to be my first post here

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