evidence: Immanuel Kant (1724-1804) was one of the most important philosophers of the Enlightenment Period (c. 1650-1800) in Western European history. This encyclopedia article focuses on Kant’s views in the philosophy of mind, which undergird much of his epistemology and metaphysics. In particular, it focuses on metaphysical and epistemological doctrines forming the core of Kant’s mature philosophy, as presented in the Critique of Pure Reason (CPR) of 1781/87 and elsewhere. [...] While it isn’t obvious what Kant means by this claim, it could be that. Kant takes the first premise to make a claim about the objects of thought. They exist as an independent subject or bearer of properties and cannot be conceived of as anything else. This is thus a metaphysical claim about what kinds of objects could really exist, which explains Kant’s reference to an "object in general" that could be given in intuition. [...] - Guyer, Paul. 1987. Kant and the Claims of Knowledge. Cambridge: Cambridge University Press.