Hoyt & Roberts, comps. Hoyts New Cyclopedia of Practical Quotations. 1922.
Frailty
Glass antique! twixt thee and Nell Draw we here a parallel. She, like thee, was forced to bear All reflections, foul or fair. Thou art deep and bright within, Depths as bright belongd to Gwynne; Thou art very frail as well, Frail as flesh is,so was Nell. L. BlanchardNell Gwynnes Looking Glass. St. 1.
Sometimes we are devils to ourselves, When we will tempt the frailty of our powers, Presuming on their changeful potency. Troilus and Cressida. Act IV. Sc. 4. L. 96.