Phedre

Margaret Rawlings was an accomplished actress and her version was specially written for the stage, indeed grew out of the rewriting needed to make Robert Bruce Boswell's 1890 version actable. It starts as:
My mind's made up. I go, Theramenes:
I can no longer stay in beautiful
Troezen. In mortal doubt I waver; grow
Ashamed of idleness. Six months or more
My father has been gone! I do not know
What has become of that beloved head;
Nor even here upon the earth he hides.
The verse does not control the speech, but enables a good actor to vary the pace and emphasis as the situation requires.