George Berkeley (1685-1753) - Anglo-Irish immaterialist philosopher, bishop of Cloyne (Ireland)

“I do not at all dispute the existence of any thing that we can know through feeling or reflections. That those things that I see with my own eyes, touch with my hands, really exist, I have no doubt about this. The only thing whose existence we deny is what philosophers call matter or corporeal substance. (J. Berkeley) "We may find it difficult (or almost impossible) to perceive our everyday world at this level. But despite this, Berkeley's arguments cannot be refuted." (Paul Strathern "Berkeley in 90 Minutes") "I admire Berkeley without disagreeing with him." "Berkeley's great historical merit... is his opposition to essentialist explanations in science." (Karl Popper "A Note on Berkeley as the Predecessor of Mach and Einstein")