G.K. Chesterton, Orthodoxy

It is true that the historic Church has at once emphasised celibacy and emphasised the family; has at once (if one may put it so) been fiercely for having children and fiercely for not having children. It has kept them side by side like two strong colours, red and white, like the red and white upon the shield of St. George. It has always had a healthy hatred of pink. It hates that combination of two colours which is the feeble expedient of the philosophers. It hates that evolution of black into white which is tantamount to a dirty gray. In fact, the whole theory of the Church on virginity might be symbolized in the statement that white is a colour; not merely the absence of a colour. All that I am urging here can be expressed by saying that Christianity sought in most of these cases to keep two colours coexistent but pure. It is not a mixture like russet or purple; it is rather like a shot silk, for a shot silk is always at right angles, and is in the pattern of the cross.

. . . It is constantly assured, especially in our Tolstoyan tendencies, that when the lion lies down with the lamb the lion becomes lamb-like. But that is brutal annexation and imperialism on the part of the lamb. That is simply the lamb absorbing the lion instead of the lion eating the lamb. The real problem is -- Can the lion lie down with the lamb and still retain his royal ferocity? That is the problem the Church attempted; that is the miracle she achieved.
[Chapter VI, "The Paradoxes of Christianity"]