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OLD MAN. Ah, Doctor Faustus, that I might prevail To guide thy steps unto the way of life, By which sweet path thou mayst attain the goal That shall conduct thee to celestial rest! Break heart, drop blood, and mingle it with tears, Tears falling from repentant heaviness Of thy most vile[155] and loathsome filthiness, The stench whereof corrupts the inward soul With such flagitious crimes of heinous sin[156] As no commiseration may expel, But mercy, Faustus, of thy Saviour sweet, Whose blood alone must wash away thy guilt.