William Butler Yeats (13 June 1865 – 28 January 1939 / County Dublin / Ireland)

A crazy man that found a cup,
When all but dead of thirst,
Hardly dared to wet his mouth
Imagining, moon-accursed,
That another mouthful
And his beating heart would burst.
October last I found it too
But found it dry as bone,
And for that reason am I crazed
And my sleep is gone.