Henry James, Portraits of places (1883)
“ But the place lacked, to my sense, the peculiar softness and venerableness, the ivied mellowness, of a great English ruin. At Coucy there is no ivy to speak of; the climate has not caressed and embroidered the rugged masses of stone. This is what I meant by speaking of the famous donjon as spectral; the term is an odd one to apply to an edifice whose walls are thirty-four feet thick. Its vast, pale surface has not a speck nor a stain, not a clinging weed nor a creeping plant. It looks like a tower of ivory. ”
