Joseph Glanvill (1636-1680), Scepsis Scientifica: or, Confest Ignorance, the Way to Science; in an Essay of the Vanity of Dogmatizing and Confident Opinion
, ed. John Owen (London: Kegan Paul, Trench & Co, 1885), p. 201 (from Chap. XXVII):
(5.) Obstinacy in Opinions holds the Dogmatist in the chains of Error, without hope of emancipation. While we are confident of all things, we are fatally deceiv'd in most. He that assures himself he never erres, will always erre; and his presumptions will render all attempts to inform him, ineffective. We use not to seek further for what we think we are possesst of; and when falshood is without suspicion embrac't in the stead of truth, and with confidence retained: Verity will be rejected as a supposed Error, and irreconcilably be hated, because it opposeth what is truly so.