The Life and Death of Richard the Third

What do I fear? myself? there's none else by:
Richard loves Richard; that is, I am I.
Is there a murderer here? No. Yes, I am:
Then fly. What, from myself? Great reason why:
Lest I revenge. What, myself upon myself?
Alack. I love myself. Wherefore? for any good
That I myself have done unto myself?
O, no! alas, I rather hate myself
For hateful deeds committed by myself!
I am a villain: yet I lie. I am not.
Fool, of thyself speak well: fool, do not flatter.

The Life and Death of Richard the Third]