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心理学家必须避免一切形而上的假设。
When you can't go back, you have to worry only about the best way of moving forward.
The realization that electronic properties can be topologically protected has revolutionized our understanding of solid-state physics.
一个人要知道自己的位置,就像一个人知道自己的脸面一样,这是最为清醒的自觉。