natures, no one will be disposed to deny that 'from them flow most of the benefits of individuals and states;' and even from imperfect combinations of the two elements in teachers or statesmen great good may often arise. Yet there is a higher region in which love is not only felt, but satisfied, in the perfect beauty of eternal knowledge, beginning with the beauty of earthly things, and at last reaching a beauty in which all existence is seen to be harmonious and one. The limited affection is enlarged, and enabled to behold the ideal of all things. And here the highest summit which is reached in the Symposium is seen also to be the highest summit which is attained in the Republic, but approached from another side; and there is 'a way upwards and downwards,' which is the same and not the same in both. The ideal beauty of the one is the ideal good of the other; regarded not with the eye of knowledge, but of faith and desire; and they are respectively the source of beauty and the source of good in all other things. And by the steps of a 'ladder reaching to heaven' we pass from images of visible beauty (Greek), and from the hypotheses of the Mathematical sciences, which are not yet based upon the idea of good, through the concrete to the abstract, and, by different paths arriving, behold the vision of the eternal (compare Symp. (Greek) Republic (Greek) also Phaedrus). Under one aspect 'the idea is love'; under another, 'truth.' In both the lover of wisdom is the 'spectator of all time and of all existence.' This is a 'mystery' in which Plato also obscurely intimates the union of the spiritual and fleshly, the interpenetration of the moral and intellectual faculties.