Here you will find the Poem A Man Young And Old: VIII. Summer And Spring of poet William Butler Yeats
We sat under an old thorn-tree And talked away the night, Told all that had been said or done Since first we saw the light, And when we talked of growing up Knew that we'd halved a soul And fell the one in t'other's arms That we might make it whole; Then peter had a murdering look, For it seemed that he and she Had spoken of their childish days Under that very tree. O what a bursting out there was, And what a blossoming, When we had all the summer-time And she had all the spring!