With such questionings ringing in his inner ear, the man with some lingering instinct of goodness might well crave, beyond anything else, for an inner law of life which should bring order into the chaos of his conduct and desires.(1577) And philosophy, having in magnificent effort failed to scale the virgin heights, fell back on conduct, which seemed then, even more than to a lost teacher of our youth, “three-fourths of life.” The great science which, in the glory and fresh vigour of the Hellenic prime, aspired to embrace all existence and all knowledge, to penetrate the secret of the universe and God, by general consent narrowed its efforts to relieve the struggles of this transient life set “between two eternities.” The human spirit, weary of the fruitless quest of an ever-vanishing ideal of knowledge, took up the humbler task of solving the ever-recurring problem of human happiness and conduct. Henceforth, in spite of traditional dialectic discordance, all the schools, Stoic or Epicurean, Sceptic or Eclectic, are seeking for the secret of inner peace, and are singularly unanimous in their report of the discovery.(1578) The inner life of the spirit becomes all in all. Speculation and political activity are equally unimportant to the true life of the soul. Calm equipoise of the inner nature, undisturbed by the changes of fortunes or the solicitations of desire, is the ideal of all, under whatever difference of phrase. What has he to do with any single state who realises his citizenship in the great commonwealth of man? If the secret of peace cannot be won by launching in adventurous thought into the Infinite, perchance it may be found in discipline of the rebellious will. Philosophy, then, must become the guide of life, the healer of spiritual maladies.(1579) It must teach the whole duty of man, to the gods, to the state, to parents and elders, to women and to slaves. It must attempt the harder task of bringing some principle of order into the turmoil of emotion and passion: it must teach us, amid the keen claims of competing objects of desire, to distinguish the true from the false, the permanent from the fleeting.