He claims to have a certain kind of knowledge of what justice is, and claims to be able to teach it to others.

他声称拥有,某种解释正义的知识，并声称自己能向他人传授这种知识。

耶鲁公开课 - 政治哲学导论课程节选

By the way, professors immersed in a strong research program often teach cutting edge knowledge and skills, but not to remedial, whining, entitled students.

FORBES: A New Kind of College Education

Best of all, doubt fades to be replaced with experience, the kind of practical knowledge only real bruises can teach.

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Why teach pupils well, when distress and maladies earns them more marks than knowledge?

BBC: Extra marks for exam day 'stress'