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1·It's a theory called occasionalism.

这个理论叫作“偶因论”。

2·Although his principal work, The Search after Truth covers a wide variety of topics, Malebranche is remembered principally for his theory of occasionalism as a solution to Descartes' mindbody problem.

虽然他最重要的著作《真理的探索》涉及诸多的话题，但他最出名的理论是为解决笛卡尔心物二分问题而提出的偶因论。