Whatever the acknowledged intention of the compilers, [the Prayer-Book] can and does add up to an ascetical system of brilliant simplicity. A good deal is said and written about the ambiguity of rubric and the omission of clear ceremonial direction; what is overlooked is the significance of a far greater omission than this. About one-sixth of the Prayer Book deals with sacraments and rites for the occasional necessities of life, including, of course, the initiatory sacraments. All the rest — five-sixths — is concerned with Holy Communion and the Office; and nothing else whatsoever. It is more rigidly ascetical than the Rule of St Benedict! Martin Thornton, Feed My Lambs (1960), VI.