THE NEW WINE 221 wilderness of doubt , he also left the great riddle un answered , to leap voiceless midst the desert wind , and to dance songless 'mongst his bleached and rattling bones . Further on we shall see how Crowley , setting out with both chart and compass , like a second Edipus wrested the secret from the age -worn lips of the Sphinx ; for as he himself says : Eternal mockery is the real ; Eternal falsehood , the ideal .' However , Hume arrives at a negative result of ex traordinary worth . He took Newton's second law of motion ,' i.e., of Cause and Effect , and wrote against it a colossal “ WHY ? ” Berkeley, as we saw above , arrived at the conclu sion , that it was impossible to solve the question of relationship between the things which are perceived , and the things which are not perceived ; and in the “ Three Dialogues between Hylas and Philonous ” he further elaborates this proposition . Hume by a slightly different road arrives at an exactly similar conclusion , namely : how is it possible to judge the relationship between cause and effect , or in other words the per ceived and not perceived ? “ The first time a man saw the communication of motion by impulse . . . (billiard balls ) . . . what alteration has happened to give rise to this new idea of connexion . Nothing but that he now feels these events to be connected in his imagination Hume thus arrives at the conclusion that cause and effect can only be inferred from each other , and never > 3 1 Gargoyles, vol . iii, p . 93 . 2 Every change of motion is proportional to the force im pressed , and is made in the direction of that force . 3 An Enquiry'concerning Human Understanding , p . 78 .