Even on the natural side man finds attraction and inspiration in problems, puzzles and difficulties.[39] No sooner is one problem solved or one difficulty surmounted than another is eagerly sought for and grappled with. The spice of life lies in its antagonisms.[40] It is not the prospect of some reward of wealth or honour that carries men to the crown of their task; it is the joy of the doing, a joy that is felt even in those preliminary experimentations which only pave the way to the real undertaking. Men--we are not thinking of butterflies--cannot exist without difficulty. To be shorn of it means death, because inspiration is bound up with it, and inspiration is the breath of God, without the constant influx of which man ceases to be a living soul. Responsibility is the sacrament of inspiration. The miracles of Christ, whatever else they did, suggested new responsibility to the race, opened up a new field of daring and enlarged the scope of human operations. They encouraged men to attempt the impossible; and without question the hidden but no less effective cause of all scientific development has been and is Christian aspiration, roused to its highest pitch by the marvels performed by the Man Christ Jesus. Christian faith has educated us to a belief that the first promise of order lies in the discovery of chaos, and that every problem carries in its own pocket a key formed to fit the hand of man. Thus interest in the sorrows and perplexities of the multitudes rises from a nerveless compassion that of yore worked laboriously with its "law-stiffened fingers," to a wide-reaching ministration of power; the secrets of nature become invitations to knowledge; and effort that was once merely instinctive and random becomes rational and triumphant.