"Until the age of seventy, nothing I drew was worthy of notice. At seventy-three years, I was somewhat able to fathom the growth of plants and trees, and the structure of birds, animals, insects and fish."
 
—Katsushika Hokusai, One Hundred Views of Mt. Fuji, 1834

https://publicdomainreview.org/collection/hokusai-warriors/

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