90% sureThese words were traced back to where they first appeared. That source is listed below.
What turned up
Judith Cladel, Rodin: The Man and His Art (trans. S.K. Star, The Century Co., 1917), p. 7 — Rodin's direct quoted speech.
Work
Rodin: The Man and His Art (Judith Cladel, 1917)
Occasion
1917 · France · recalling that he drew from early childhood — but the gift was nothing without the will to work at it
Sources checked
gutenberg.orgChecked using claude-fable-5, 22 August 2026Full text fetched and grepped this pass; verbatim, direct quoted speech ('he says'). Preceding clause: 'the gift is nothing without the will to make it worth while.' Shares the water-wears-stone image with Ovid's history_v1 line but makes a distinct claim (the artist's patience) — considered, kept.