
“Fair tresses man's imperial race ensnare,
And beauty draws us with a single hair.”
Canto II, line 27. Compare: "No cord nor cable can so forcibly draw, or hold so fast, as love can do with a twined thread", Robert Burton, Anatomy of Melancholy, Part iii, Section 2, Membrane 1, Subsection 2.
The Rape of the Lock (1712, revised 1714 and 1717)