Well directed and earnest study, … and the clash of diverse opinions and their discussion, provided love of truth and due submission to the Church be their arbiter, will open rich bright vistas whose light will help to progress in kindred sacred sciences. These words of Pope Pius XII, written in 1943, present an ideal for liturgical enthusiasts. Before all else it is among students of the liturgy that we expect to find a spirit of tolerance and charity, because the inspiration of their study is Calvary, itself the source of charity. Bitterness in dispute is particularly out of place here. Disagreement itself is, as the Pope has pointed out, a sign of health: but when discussion becomes scrimonious something has gone wrong. Intolerance is bred from inaccurate thinking and the most inaccurate thought springs from the confusion of essentials with accidentals. Short vestments may be undignified and lacking in symbolism, but that does not convict the wearer of heresy.