Here you will find the Poem A Man Young And Old: V. The Empty Cup of poet William Butler Yeats
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.