The essence of the heretic, that is to say of someone who has a particular opinion, is that he clings to his own ideas; and the essence of the Catholic, that is to say of the universal, is to prefer to his sentiments the common sentiment of the entire Church.
Le propre de l'hérétique, c'est-à-dire de colui qui a une opinion particulière, est de s'attacher à ses propres pensées; et le propre du catholique, c'est-à-dire de l'universel, est de préférer à ses sentiments le sentiment commun de tout l'Eglise.
Original text (French)