Original link: https://www.ntiy.com/2005.html
There is such a widely circulated theory: when you look back on what you have said and done, if you feel that you were a fool in the past, it means that you have made progress during this period; on the contrary, if you still feel that you were a fool now You are very smart at that time, which means you have not made any progress during this period. Indeed, I can’t find it…
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