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宁静的灵魂比烦乱的灵魂更为智慧。
The best way to learn mathematics is to do mathematics.
You are the artist of your own life. Don't hand the paintbrush to anyone else.
Quality is remembered long after price is forgotten.
Uncertainty is not the absence of information, but the presence of too much conflicting information.
This was a very short visit, but it plunged the little prince into deep dejection.