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Play is the language of childhood, and books should speak that language too.
Precision is not just a goal in our experiments; it's the very language through which nature speaks to us.
领导力是激励他人实现他们的最佳状态。
The most important thing in science is not so much to obtain new facts as to discover new ways of thinking about them.
穷人往往比富人更具创业精神,但他们缺乏成功的工具。