[jdc]

TLDR; it's probably T.S. Elliot and Stravinsky that deserve the credit.

[dang]

That's one case where QI was weirdly noncommittal. It's obviously Eliot's line ("Immature poets imitate; mature poets steal"), with a couple words replaced. The Stravinsky reference came decades later and was second-hand anyhow.

[birdyrooster]

It was Steve Jobs

/s