This chapter reviews and assesses Berkeley's main arguments for immaterialism, his arguments against the existence of matter or material substance. I place particular emphasis on the themes of earlier chapters: intentionality, abstraction, necessity, and intelligibility. My aim is to show that Berkeley's thinking about these topics made a powerful contribution to his immaterialism, even if they seem, on the surface, to be distant from it. I provide an account of immediate perception as Berkeley understands it, and emphasize the phenomenalist elements in Berkeley's development of immaterialism.

This chapter reviews and assesses Berkeley's main arguments for immaterialism, his arguments against the existence of matter or material substance. I place particular emphasis on the themes of earlier chapters: intentionality, abstraction, necessity, and intelligibility. My aim is to show that Berkeley's thinking about these topics made a powerful contribution to his immaterialism, even if they seem, on the surface, to be distant from it. I provide an account of immediate perception as Berkeley understands it, and emphasize the phenomenalist elements in Berkeley's development of immaterialism.