That we can conceive of mathematical ideals like perfect circles that are never actually realized or encountered in the concrete, physical world (even if it is

That we can conceive of mathematical ideals like perfect circles that are never actually realized or encountered in the concrete, physical world (even if it is the case that they are possible in principle, in practice we arguably never encounter such things) suggests something very interesting about the nature of the human intellect. And, in fact, even if they did exist physically, the very fact that the concept or predicate of Circularity exists in the intellect (and this concept must be Circularity as such or else we could not speak of circular things) and applies to many things despite their diversity, also suggests something about the intellect, namely, that it is not physical, as the physical is always concrete, instantiated, singular, this-and-not-that, not ideal.