The reader who has followed our exposition in the earlier parts of this chapter can be in no doubt that, to find a philosophy similar to Traherne's, he must look for it in Reid and not in Berkeley. Reid himself rightly placed Berkeley amongst the representatives of the 'ideal system' of thought. For Berkeley's philosophy represents an effort of the onlooker-consciousness, unable as it was to arrive at certainty regarding the objective existence of a material world outside itself, to secure recognition for an objective Self behind the flux of mental phenomena. Berkeley hoped to do this by supposing that the world, including God, consists of nothing but 'idea'-creating minds, operating like the human mind as man himself perceives it. His world picture, based (as is well known) entirely on optical experiences, is the perfect example of a philosophy contrived by the one-eyed, colourblind world-spectator.