“Although the summer sunlight gild
Cloudy leafage of the sky,
Or wintry moonlight sink the field
In storm-scattered intricacy,
I cannot look thereon,
Responsibility so weighs me down.
Things said or done long years ago,
Or things I did not do or say
But thought that I might say or do,
Weigh me down, and not a day
But something is recalled,
My conscience or my vanity appalled.”
Yeats, from Vacillation, not in the collection called Responsibilities, but a later one, The Winding Stair.