The principal object of Plato’s negative criticism had been to emphasise the distinction between reality and appearance in the world without, between sense, or imagination, and reason in the human soul. True to the mediatorial spirit of Greek thought, his object now was to bridge over the seemingly impassable gulf. We must not be understood to say that these two distinct, and to some extent contrasted, tendencies correspond to two definitely divided periods of his life. It is evident that the tasks of dissection and reconstruction were often carried on conjointly, and represented two aspects of an indivisible process. But on the whole there is good reason to believe that Plato, like other men, was more inclined to pull to pieces in his youth and to build up in his later days. We are, therefore, disposed to agree with those critics who assign both the _Phaedrus_ and the _Symposium_ to a comparatively advanced stage of Platonic speculation. It is less easy to decide which of the two was composed first, for there seems to be a greater maturity of thought in the one and of style in the other. For our purposes it will be most convenient to consider them together. We have seen how Plato came to look on mathematics as an introduction to absolute knowledge. He now discovered a parallel method of approach towards perfect wisdom in an order of experience which to most persons might seem as far as possible removed from exact science—in those passionate feelings which were excited in the Greek imagination by the spectacle of youthful beauty, without distinction of sex. There was, at least among the Athenians, a strong intellectual element in the attachments arising out of such feelings; and the strange anomaly might often be seen of a man devoting himself to the education of a youth whom he was, in other respects, doing his utmost to corrupt. Again, the beauty by which a Greek felt most fascinated came nearer to a visible embodiment of mind than any that has ever been known, and as such could be associated with the purest philosophical aspirations. And, finally, the passion of love in its normal manifestations is an essentially generic instinct, being that which carries an individual most entirely out of himself, making him instrumental to the preservation of the race in forms of ever-increasing comeliness and vigour; so that, given a wise training and a wide experience, the maintenance of a noble breed may safely be entrusted to its infallible selection.[134] All these points of view have been developed by Plato with such copiousness of illustration and splendour of language that his name is still associated in popular fancy with an ideal of exalted and purified desire.