This essay is concerned with Indian Yogācāra philosophers’ treatment of the problem of other minds in the face of a threatened collapse into solipsism suggested by Vasubandhu’s epistemological argument for idealism. I discuss the attempts of Dharmakīrti and Ratnakīrti to address this issue, concluding that Dharmakīrti is best seen as addressing the epistemological problem of other minds and Ratnakīrti as addressing the conceptual problem of other minds.

Though perhaps a dubious honor, Dharmakīrti is the first philosopher in any tradition to explicitly recognize the epistemological threat of solipsism, devoting an entire essay to the problem—The Justification of Other Minds. This essay revisits Ratnakīrti’s Doing Away with Other Beings as a diagnosis of Dharmakīrti’s attempt to reconstruct the very idea of other beings, with particular attention to Ratnakīrti’s sensitivity to the conceptual preconditions for a genuine threat of solipsism. Along with the diagnosis of the conditions for the emergence (...) of a problem of genuine solipsism, this essay takes as its focus Ratnakīrti’s criticism of attempts to meet with the problem. In particular, I shall stress an insight Ratnakīrti adduces in the course of his diagnosis. Attempts to meet the problem of solipsism head on, Ratnakīrti shows us, obscure what the preconditions for a genuine problem reveal: the fact of our possessing two incommensurable conceptions of mind, one of which is intrinsically and entirely first-personal—in a sense to be clarified in the course of this essay—and the other not. I conclude this essay with an inconclusive sketch of the difficulties that remain when considering what Ratnakīrti would have us conclude from his own diagnosis. (shrink)