That all [Berkeley's] arguments, though otherwise intended, are, in reality, merely sceptical, appears from this, that they admit of no answer and produce no conviction. Their only effect is to cause that momentary amazement and irresolution and confusion, which is the result of scepticism.
David Hume (1711–1776), Scottish philosopher. Enquiries Concerning the Human Understanding and Concerning the Principles of Morals, Foot. 31 ("Of the Academical or Sceptical Philosophy"), p. 155, ed. L. Selby-Bigge, M.A., 2nd edition, London, Oxford University Press (1902).
Hume on Berkeley, from "An Enquiry Concerning Human Understanding."