• Thou spring'st a leak already in thy crown, A flaw is in thy ill-bak'd vessel found; 'Tis hollow, and returns a jarring sound, Yet thy moist clay is pliant to command, Unwrought, and easy to the potter's hand: Now take the mould; now bend thy mind to feel The first sharp motions of the forming wheel.

    John Dryden (1866). “Poetical Works: With a Memoir”, p.186