G . Leathem . The inner soul may learn . I cannot put The beauty of my art into mere words ; In picture or in music set it forth ; I may suggest and lighten — that is all . Before the poet 's eye there ever floats A vision of a Land of Heart 's Desire Utopia , Atlantis , Tir - nam - Og , Call it what name you will — where one escapes The ugliness and sordidness of life . In mathematics I have found a land Which jealousy and meanness cannot reach ; A land of ample sweep and vast expanse ; Lifeless and cold indeed , but beautiful With the calm beauty of the Buddhist 's heaven ." And then he spoke of strength , Of the keen sense of power in Rodin 's work Which furnished half the greatness of his art . And of the strength the mathematician had ; How with those subtle arms dx , dy He reached the hidden citadels of truth . And how he went exploring in his world Of space and number , groping in the dark , Finding the pathways blocked on every side , Till some great thought arising as a sun , Would drive the mists away and show in front The radiant living mountains of new truth . I know not if I understood aright His meaning , but I saw upon his face The rapture of a visionary inspired . And as I went from out the ancient gate , mber , Focked on a su min front 102