If what the term "idealism" says, amounts to the understanding that Being can never be explained by entities but is already that which is 'transcendental' for every entity, then idealism affords the only correct possibility for a philosophical problematic. If so, Aristotle was no less an idealist than Kant. But if "idealism" signifies tracing back every entity to a subject or consciousness whose sole distinguishing features are that it remains indefinite in its Being and is best characterized negatively as 'un-Thing-like', then this idealism is no less naïve in its method than the most grossly militant realism.

B&T, pp. 251-2

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