discard the dross and select the essential

Change the nature of human understanding and that is get the signal from the start, after eliminate the false and retain the true, discard the dross and select the essential, exterior to interior, from here to the analysis and processing to achieve the ultimate goal.

人类认识和改造自然就是从获取信号开始，经过去伪存真、去粗取精、由表及里、由此及彼的分析处理才能达到最终目的。

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Like the mother giving the birth, creation also needs to endure the pain, but as the fruit of creation, the children are the brand-new value judgment which has to discard the dross and select the essential and to eliminate the false and retain the true.

创造和生孩子一样要忍受痛苦，但孩子作为创造的结果，是一个全新的价值判断，这个价值判断必须去粗取精，去伪存真。

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Physical model building should be an abstract one which should be based on the concrete conditions, discard the dross and select the essential, seize the principal contradiction and conform to the knowledge law.

物理模型的建立，应根据具体条件，去粗存精，抓住主要矛盾，建立起抽象化的物理模型，使之符合人类的认识规律。

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Discard the Dross and Select the Essential, Eliminate the False and Retain the True-Professor Song Li-ren's Insight into Research of Materia Medica Literature

去粗取精去伪存真&宋立人教授谈本草文献研究

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