| In 1709 he issued An Essay towards a New Theory of Vision, followed in the next year by The Principles of Human Knowledge, the main exposition of his immaterialism. |
| What had touched the world's hearts was the ethereal immaterialism of their secluded world and something primal in the music they sang. |
| The affinity between immaterialism and traditional religion is somewhat easier to understand. |
| But inasmuch as the notion of metaphysics itself seems to exclude materialism, the vital alternative is that of immaterialism. |
| He constantly defended Idealistic, or speculative, philosophy against Pragmatism, neo-Realism, Materialism, and Berkeleian immaterialism. |
| Even for Leibniz, whose later monadological metaphysics was perhaps closer to Berkeley's immaterialist philosophy, an opposition to materialism didn't necessarily imply immaterialism. |
