MWSN II.8:
Calderón de la Barca.
["Man endlessly walks / On the earth's hard ground, / And each step he takes / is on his tomb" (El príncipe constante III.7.2517-20; noted and transl. by Blumberg and Crook, p. 211n)]
Romantic Circles / Electronic Editions / The Last Man / MWS Notes: II.8.1