A knotty piece of timber must have smooth wedges. – English proverb quoted by John Ray, 1670
The civil law cannot provide but by common measures… all their rules are made by as common a measure as they can, and they are the best rules that have the fewest exceptions: the best Carpenters make the fewest chips: but some there must be. – Jeremy Taylor, Ductor Dubitantium, or The Rule of Conscience, 1659