My dear brethren, this is how: listen well and you will understand if you have religion as God wants you to have it in order to lead you to Heaven. If a person has true virtue, nothing whatever can change him; he is like a rock in the midst of a tempestuous sea. If anyone scorns you, or calumniates you, if someone mocks at you or calls you a hypocrite or a sanctimonious fraud, none of this will have the least effect upon your peace of soul. You will love him just as much as you loved him when he was saying good things about you. You will not fail to do him a good turn and to help him, even if he speaks badly of your assistance. You will say your prayers, go to Confession, to Holy Communion, you will go to Mass, all according to your general custom.
(from the Book “The Sermons of The Cure of Ars”, TAN Books 2013, Page 17)