Tired by sand
It is not the mountains in the distance that make people tired, but a grain of sand in their shoes. But most people like to talk a…
Feynman Technigue
This isn‘t a book about academic study techniques， but since you’re diligentlyreading the endnotes， here‘s a deceptively simple st…
告别拖延症！教你如何轻松戒掉“手机控”
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