Hokusai

"All I have produced before the age of seventy is not worth taking into account. At seventy-three I have learned a little about the real structure of nature, of animals, plants, trees, birds, fishes and insects. In consequence when I am eighty, I shall have made still more progress. At ninety I shall penetrate the mystery of things; at one hundred I shall certainly have reached a marvelous stage; and when I am a hundred and ten, everything I do, be it a dot or a line, will be alive. I beg those who live as long as I to see if I do not keep my word. Written at the age of seventy five by me, once Hokusai, today Gwakyo Rojin, the old man mad about drawing."