This book must avoid religion, but there must (I say) be many, religious and irreligious, who will concede that this power of answering many purposes was a sort of strength which should not wholly die out of our lives. As a part of personal character, even the moderns will agree that many-sidedness is a merit and a merit that may easily be overlooked. This balance and universality has been the vision of many groups of men in many ages. It was the Liberal Education of Aristotle; the jack-of-all-trades artistry of Leonardo da Vinci and his friends; the august amateurishness of the Cavalier Person of Quality like Sir William Temple or the great Earl of Dorset. It has appeared in literature in our time in the most erratic and opposite shapes, set to almost inaudible music by Walter Pater and enunciated through a foghorn by Walt Whitman. But the great mass of men have always been unable to achieve this literal universality, because of the nature of their work in the world. Not, let it be noted, because of the existence of their work. Leonardo da Vinci must have worked pretty hard; on the other hand, many a government office clerk, village constable or elusive plumber may do (to all human appearance) no work at all, and yet show no signs of the Aristotelian universalism.