Germanus: What is the reason why Lent is kept for six weeks, while in some countries a possibly more earnest care for religion seems to have added a seventh week as well, though neither number when you subtract Sunday and Saturday, gives the total of forty days? For only six and thirty days are included in these weeks.
Reproduced in full. Translation: Nicene and Post-Nicene Fathers, series 2, vol. 11 (Schaff and Wace, 1894), public domain (Public domain).