"The Incoherence of the Philosophers" propounds the Asharite theory of occasionalism. Among the more influential theories within philosophy are Aristotle's Four causes and Al-Ghazali's occasionalism. Al-Ghazali also used the theory to support his theory of occasionalism. Hence the doctrine is named occasionalism. A prominent version of parallelism is called occasionalism. The occasionalism of Geulincx is ethical rather than cosmological in its inception. What he proposed can be seen as a modification of occasionalism developed by latter-day Cartesians. Malebranche is best known for his doctrines of vision in God, occasionalism and ontologism.