by Richard Wilbur
I read how Quixote in his random ride
Came to a crossing once, and lest he lose
the purity of chance, would not decide
Whither to fare, but wished his horse to choose.
For glory lay wherever he might turn.
His head was light with pride, his horse’s shoes
Were heavy, and he headed for the barn.
You can find this in Richard Wilbur: Collected Poems 1943-2004.