One hair of a woman can draw more than a hundred pair of oxen.—Howell: Letters, book ii. iv. (1621).
She knows her man, and when you rant and swear,
Can draw you to her with a single hair.
Dryden: Persius, satire v. line 246.
Beauty draws us with a single hair.—Pope: The Rape of the Lock, canto ii. line 27.
And from that luckless hour my tyrant fair
Has led and turned me by a single hair.
Bland: Anthology, p. 20 (edition 1813).