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The dad diarists approach their subject like anthropologists, engaged in rational inquiry into an alien culture and the nature of nurture.

父亲级的日记作家研究的主题类似于人类学家，皆致力于理性探究异域文化和教育的性质。

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And the method through the course emphasizes self-cooperative inquiry from the perceptual to the rational, from query to conclusion.

而贯穿这个过程的主要就是从感性到理性，从质疑到结论。

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Reason permits a continuing rational inquiry into the nature of reality.

推理能够对现实的本质,进行持续合理的探究

耶鲁公开课 - 古希腊历史简介课程节选

Last month 49, 000 consumers self-selected among 598 brands in 83 diverse categories in which they are customers, and assessed brands based on an independently-validated technique that fuses rational and emotional aspects of the categories, using a combination of psychological inquiry and higher-order statistical analyses.

FORBES: Customer Loyalty Engagement Index 2012 Commandment: Delight Thy Customer