那种离开实际需要空谈理论的科研是老师们所不感兴趣的。
That kind of the research which leaves no effective demand empty is not the interest of teachers'.
官僚们定期重写课程内容，空谈教育理论，并要求雇佣更多的管理人员。
Bureaucrats regularly rewrite curriculums, talk nonsense about theories of education, and require ever more administrators.
不要空谈你的理论，你必须去实践它并检验它。
Don't prattle about your theory. You must practise it and prove it.
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