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Psychology should study how the mind works, not just what it contains.

The most expensive thing in the world is trust. It can take years to earn and just a matter of seconds to lose.

Strength doesn't come from what you can do. It comes from overcoming the things you once thought you couldn't.

小步快跑，快速迭代。

劍鞘保護(hù)劍的鋒利，自己卻滿足於它自己的遲鈍。