单选题
Others abide our question. Thou art free. We ask and ask—Thou smilest and art still, Out—topping knowledge. For the loftiest hill, Who to the stars uncrowns his majesty, Planting his steadfast footsteps in the sea, Making the heaven of heavens his dwelling-place Spares but the cloudy border of his base To the foil" d searching of mortality;The following lines are taken from a poem written by______.