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The Kaccayanagotta Sutta makes a similar point, but instead of employing the Western antithetical notions of realism vs. idealism is employs the Indian antithetical notions of existence vs. non-existence.

The difference is that the Buddha's Middle Teaching discards both of these speculative views -- and everything in between, along with all else philosophical -- and instead focuses upon our reactions to our own perceptions of the world.