If it is the love of that which your work represents--if, being a
landscape painter, it is love of hills and trees that moves
you--if, being a figure painter, it is love of human beauty, and
human soul that moves you--if, being a flower or animal painter,
it is love, and wonder, and delight in petal and in limb that
move you, then the Spirit is upon you, and the earth is yours,
and the fullness thereof.
— John Ruskin
Painting