The poem
Sweetheart, do not love too long: I loved long and long, And grew to be out of fashion Like an old song.
All through the years of our youth Neither could have known Their own thought from the other's, We were so much at one.
But O, in a minute she changed - O do not love too long, Or you will grow out of fashion Like an old song.
I ask that everyone read "Brown Penny" side by side with "O Do Not Love Too Long". It's most interesting when trying to get into Yeats true thoughts of Love. Feel free to email me with comments once doing so.