In some such way as this we could gather up these strewn and scattered petals of song into one perfect rose of life, and yet, perhaps, in so doing, we might be missing the true quality of the poems; one’s real life is so often the life that one does not lead; and beautiful poems, like threads of beautiful silks, may be woven into many patterns and to suit many designs, all wonderful and all different: and romantic poetry, too, is essentially the poetry of impressions, being like that latest school of painting, the school of Whistler and Albert Moore, in its choice of situation as opposed to subject; in its dealing with the exceptions rather than with the types of life; in its brief intensity; in what one might call its fiery-coloured momentariness, it being indeed the momentary situations of life, the momentary aspects of nature, which poetry and painting now seek to render for us. Sincerity and constancy will the artist, indeed, have always; but sincerity in art is merely that plastic perfection of execution without which a poem or a painting, however noble its sentiment or human its origin, is but wasted and unreal work, and the constancy of the artist cannot be to any definite rule or system of living, but to that principle of beauty only through which the inconstant shadows of his life are in their most fleeting moment arrested and made permanent.
Oscar Wilde in L’ENVOI to ROSE LEAF AND APPLE LEAF by Rennell Rodd