Human Dignity William Butler Yeats

Like the moon her kindness is,
If kindness I may call
What has no comprehension in't,
But is the same for all
As though my sorrow were a scene
Upon a painted wall.

So like a bit of stone I lie
Under a broken tree.
I could recover if I shrieked
My heart's agony
To passing bird, but I am dumb
From human dignity.