The founders, considered the founders of humanistic psychology " in fact called it "the third force".

人本主义心理学的创始人,称之为心理学上的“第三势力。

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And the third force, humanistic psychology came as a reaction to it.

第三势力，人本主义心理学作为对其的异议出现。

哈佛公开课 - 幸福课课程节选