I THINK it better that in times like these
A poet's mouth be silent, for in truth
We have no gift to set a statesman right;
He has had enough of medding who can please
A young girl in the indolence of her youth,
Or an old man upon a winter's night.
William Butler Yeats
http://www.poemhunter.com/poem/on-being-asked-for-a-war-poem/