"[I]deas are not any how and at random produced, there being a certain order and connexion between them, like to that of cause and effect: there are also several combinations of them, made in a very regular and artificial manner, which seem like so many instruments in the hand of nature, that being hid, as it were, behind the scenes, have a secret operation in producing those appearances which are seen on the theatre of the world"
— Berkeley, George (1685-1753)
(Part I, §64, p. 68)
See also Tonson's London edition: A Treatise Concerning the Principles of Human Knowledge. Wherein the Chief Causes of Error and Difficulty in the Sciences, with the Grounds of Scepticism, Atheism, and Irreligion, are Inquired Into. First Printed in the Year 1710. To Which are Added Three Dialogues between Hylas and Philonous, in Opposition to Scepticks and Atheists. First Printed in the Year 1713. Both Written by George Berkeley, M. A. Fellow of Trinity-College, Dublin (London: Jacob Tonson, 1734). <Link to ECCO>
Text from Past Masters digitized version, based on second edition of 1734. From The Works of George Berkeley, ed. T. E. Jessop and A. A. Luce, vol. ii (Desirée Park: Thomas Nelson, 1979).