As to those other things which we hold on the authority, not of Scripture, but of tradition, and which are observed throughout the whole world, it may be understood that they are held as approved and instituted either by the apostles themselves, or by plenary Councils, whose authority in the Church is most useful, e.g. the annual commemoration, by special solemnities, of the Lord's passion, resurrection, and ascension, and of the descent of the Holy Spirit from heaven, and whatever else is in like manner observed by the whole Church wherever it has been established.
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 AugustineDisturbers are to be rebuked, the low spirited to be encouraged, the infirm to be supported, objectors confuted, the treacherous guarded against, the unskilled taught, the lazy aroused, the contentious restrained, the haughty repressed, the poor relieved, the oppressed liberated, the good approved, the evil borne with, and all are to be loved!
Saint Augustine