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The best way to create interest in a subject is to render it worth knowing, which means to make the knowledge usable.
知识在心灵中以符号结构的形式表征。
I love people who make me laugh. I honestly think it's the thing I like most, to laugh. It cures a multitude of ills. It's probably the most important thing in a person.
The greatest education in the world is watching the masters at work.