“Why are you so bent down before your time, Old mason? Many have not left their prime So far behind at your age, and can still   Stand full upright at will.” He pointed to the mansion-front hard by, And to the stones of the quoin against the sky; “Those upper blocks,” he said, “that there you see,   It was that ruined me.” There stood in the air up to the parapet Crowning the corner height, the stones as set By him - ashlar whereon the gales might drum   For centuries to come. “I carried them up,” he said, “by a ladder there; The last was as big a load as I could bear; But on I heaved; and something in my back   Moved, as 'twere with a crack. “So I got crookt. I never lost that sprain; And those who live there, walled from wind and rain By freestone that I lifted, do not know   That my life's ache came so. “They don't know me, or even know my name, But good I think it, somehow, all the same To have kept 'em safe from harm, and right and tight,   Though it has broke me quite. “Yes; that I fixed it firm up there I am proud, Facing the hail and snow and sun and cloud, And to stand storms for ages, beating round   When I lie underground.”