Arthur Collier published similar assertions though there seems to have been no influence between the two contemporary writers. The only knowable reality is the represented image of an external object. Matter as a cause of that image, is unthinkable and therefore nothing to us. An external world as absolute matter unrelated to an observer does not exist as far as we are concerned. The universe cannot exist as it appears if there is no perceiving mind. Collier was influenced by An Essay Towards the Theory of the Ideal or Intelligible World by "Cambridge Platonist" John Norris (1701). COUNT 4
QSN1 Who was known as the "Cambridge Platonist"? ANS1 John Norris QSN2 Who was notably influenced by John Norris? ANS2 Arthur Collier QSN3 When was An Essay Towards the Theory of the Ideal or Intelligible World written? ANS3 1701 QSN4 What sort of reality did Collier believe was knowable? ANS4 represented image of an external object