Aristote  

[...] Here we find another discrepancy in the more limited metaphysics to which we referred earlier, for example that of Aristotle. This remains theoretically inadequate in that it limits itself to being, and its theory seems to be presented as self-sufficient instead of being expressly bound up with a corresponding realization, as is the case in all Oriental doctrines. However, even in this imperfect metaphysics (we might be tempted to say this demi-metaphysics), sometimes statements are encountered that, if properly understood, would lead to totally different conclusions; thus, did not Aristotle specifically state that a being is ali that it knows? This affirmation of identification through knowledge is the same in principle as metaphysical realization. But here the principle remains isolated; it has no value other than that of a merely theoretical statement, it carries no weight, and it seems that, having propounded it, one thinks no more about it. How was it that Aristotle himself and his followers failed to see all that here was implied? It is the same in many other cases, where apparently other equally essential things are forgotten, such as the distinction between pure intellect and reason, even after having defined them quite explicitly; these are strange omissions. [MetaOrient]