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对记忆的研究就是对人类本性的研究。
The study of memory is the study of human nature.
The most important thing is to always keep the user at the center of everything we do.
The mind once enlightened cannot again become dark.
The most important property of a program is whether it accomplishes the intention of its user.
设计中最难的部分是保持功能的简洁。