As soon as the children of this world perceive that you desire to follow a devout life they will shoot at you a thousand arrows of mockery and detraction. The most malicious will calumniate your change as being hypocrisy, bigotry, and artifice. They will say that the world has frowned on you and that being rejected by it you turned to God. Your friends will make a world of objections which they imagine to be very wise and charitable. They will tell you that you will fall into a melancholy state of mind; that you will lose credit in the world; that will you will make yourself insupportable; that you will grow old before your time; that your domestic affairs will suffer; that you must live in the world like one in the world; that salvation may be had without so many mysteries; and a thousand similar trivialities.
My Philothea, all this is nothing but foolish and empty babbling. These people are not interested in your health or in your welfare. “If you had been of the world,” says the Savior, “the world would love its own; but because you are not of the world, therefore the world hateth you.” We have seen gentlemen and ladies pass the whole night, even many nights, together at chess or cards. Is there any concentration more absurd, stupid, or gloomy, than that of gamesters? Yet worldly people do not say a word, nor do their friends ever trouble themselves about them. Should we spend an hour in meditation, or rise in the morning a little earlier than usual in order to prepare ourselves for Communion, every one runs for a physician to cure us of our hypochondria and jaundice. Such persons can pass thirty nights in dancing without experiencing any inconvenience; but if they watch a single Christmas night, every one of them coughs and complains that he is sick the next morning. Who does not see that the world is an unjust judge, gracious and favorable to its own children, but harsh and rigorous toward the children of God?
--St. Francis de Sales, Introduction to the Devout Life.