Elements in the thought of Plotinus at variance with Classical Intellectualism
Plotinus is, up to a point, a classical intellectualist in the manner of Aristotle, and, he would himself have certainly thought, of Plato. He professes, that is, to give an account of everything that is in any degree real in the universe (and even a kind of account of the unreal) which is certainly and unchangingly true and can be demonstrated to be so by rational processes. This account culminates in the description of an eternal realm of intelligible intellect which can be (and indeed really always is) our own, certainly and imperturbably possessed. This systematic account of reality, as is well known, breaks down, and we have to break out of it, in a very startling way at the top. Beyond the Platonic-Aristotelian Intellect-Intelligible, the world of real being which is Νοῦς and νοητά, lies the One or Good beyond being, which is neither intelligent nor intelligible. When we have completed our understanding of reality, we have to leave it all behind in order to find what turns out to be the only thing we want, the source of all values and the goal of all desire, which alone makes it worth the effort to attain to Νοῦς on the way, as it is the only reason why Νοῦς is there at all.