新教育政策的主导原则是容许选择。
对于作家来说，情节是选择与安排的主导原则。
For the writer, the plot is the guiding principle of selection and arrangement.
哲学变革从根本方面来说，是指符合时代进步要求的哲学主导原则的转换。
Basically speaking, transformation of philosophy refers to the change of philosophic main principles required with the progress in time.
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