The Sacraments are the salvation of those who use them rightly, and the damnation of those who misuse them.
Saint AugustineConsequently, heretics and schismatics, separated from the unity of this Body, are able to receive the same Sacrament, but with no benefit to themselves; indeed, more to their own harm, in that they are judged the more severely rather than being liberated.
Saint AugustineWhat then, is correctness of speech but the maintenance of the practice of others, as established by the authority of ancient speakers? But the weaker men are, the more they are troubled by such matters. Their weakness stems from a desire to appear learned, not with a knowledge of things, by which we are edified, but with a knowledge of signs, by which it is difficult not to be puffed up in some way; even a knowledge of things often makes people boastful, unless their necks are held down by the Lord's yoke.
Saint AugustineYou have been professing yourself reluctant to throw off your load of illusion because truth was uncertain. Well, it is certain now, yet the burden still weighs you down, while other people are given wings on freer shoulders, people who have not worn themselves out with research, nor spent a decade and more reflecting on these questions.
Saint Augustine