… from hence we may learn, first, that a catholic spirit is not speculative latitudinarianism. It is not an indifference to all opinions: this is the spawn of hell, not the offspring of heaven. This unsettledness of thought, this being “driven to and fro, and tossed about with every wind of doctrine,” is a great curse, not a blessing, an irreconcilable enemy, not a friend, to true catholicism. A man of a truly catholic spirit has not now his religion to seek. He is fixed as the sun in his judgement concerning the main branches of Christian doctrine. It is true, he is always ready to hear and weigh whatsoever can be offered against his principles; but as this does not show any wavering in his own mind, so neither does it occasion any. He does not halt between two opinions, nor vainly endeavour to blend them into one. Observe this, you who know not what spirit ye are of: who call yourselves men of a catholic spirit, only because you are of a muddy understanding; because your mind is all in a mist; because you have no settled, consistent principles, but are for jumbling all opinions together. Be convinced, that you have quite missed your way; you know not where you are. You think you are got into the very spirit of Christ; when, in truth, you are nearer the spirit of Antichrist. Go, first, and learn the first elements of the gospel of Christ, and then shall you learn to be of a truly catholic spirit.
— John Wesley, “The Catholic Spirit.“