by William Blake
London Innocence Quotes
How we cite our quotes: (Line)
But most thro' midnight streets I hear
How the youthful Harlot's curse (13-14)
The word "youthful" is important here. We expect youth to be associated with innocence, but here it is clear that the youthful harlot is part of the world of dangerous, sexual experience and (as we soon learn) disease.