William Butler Yeats Quote

This other man I had dreamed
A drunken, vain-glorious lout.
He had done most bitter wrong
To some who are near my heart,
Yet I number him in the song;
He, too, has resigned his part
In the casual comedy;
He, too, has been changed in his turn,
Transformed utterly:
A terrible beauty is born.

St. 2 - Michael Robartes and the Dancer (1921) - Easter, 1916