What epitaph did William Butler Yeats write for himself?

William Butler Yeats’ epitaph that he wrote for himself was:

“Cast a cold eye

On life, on death.

Horseman, pass by!”

The epitaph appears on Yeats’s tombstone in Drum-cliff churchyard under a mountain called Ben Bulben in County Sligo, Ireland, just as Yeats wrote in his poem “Under Ben Bulben” (1939).