87% sureThese words were traced back to where they first appeared. That source is listed below.
What turned up
Michelangelo's own sonnet addressed to Vittoria Colonna (their documented friendship/correspondence ran 1536-1547); tr. Mrs. Henry Roscoe in 'Vittoria Colonna: Her Life and Poems' (1868), p.169. Wikiquote's sourced Quotes section, named work + translator — primary poem text, not a compilation.
Work
Sonnet to Vittoria Colonna
Occasion
c. 1538-1547 · Rome · Michelangelo's own poem written for his close friend Vittoria Colonna, reflecting on carving marble
Sources checked
en.wikiquote.orgChecked using claude-sonnet-5, 21 August 2026Sourced Quotes section: sonnet to Vittoria Colonna, tr. Mrs. Henry Roscoe 1868