Note 39 — SPRING:
Reading edition
He owes this thought to Horace, Ode i. 9, 21.—Wakefield.
Or rather to the version of Dryden, since the lines of Pope have a closer resemblance to the translation than to the original:
The laugh that guides thee to the mark, When the kind nymph would coyness feign, And hides but to be found again.