The Three Rules is a self-conscious contribution to this type of writing; it even includes a bibliography of "success studies".
《三条规则》是对这类写作的自觉贡献;它甚至包括“成功研究”的参考书目。
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Case studies of children who are isolated from others reveal that they lack a firm self-concept, and their mental and psychological development is severely hindered by lack of language.
Follow-up studies have found that those who chose to delay satisfaction are now more academically successful, have greater self-worth, and even tend to be healthier.