'Clear up thine eye, and fix it on him as upon the fairest of men, the perfection of spiritual beautie...., accordingly fasten on him, not thine eye only, but thy mightiest love, and hottest affection. Look on him so, that thou maist lust after him; for here it is a sin, not to look that thou maist lust, and not to lust having looked.'
Bernard of Clairvaux in Belden C Lane, Ravished by Beauty, p.100.