I noticed an inscription by Walt Whitman in the stone wall that covers the North entrance to the Dupont Circle metro. I have ridden the DC metro, and entered and exited at that stop, many times. I have NEVER seen the inscription before. It’s a quotation by Walt Whitman, dated 1865. It’s about visiting wounded soldiers in the hospital and holding their hands and bearing witness to their suffering. I never knew Walt Whitman did such things. And why did the builders of the metro system choose that quotation to inscribe above that stop? And do other people know it’s there?