Authors:

If I am Sophocles, I am not mad; and if I am mad, I am not Sophocles.

Mad, Ifs
Sophocles (1867). “The Tragedies of Sophocles: A New Trans., with a Biographical Essay, and an Appendix of Rhymed Choral Odes and Lyrical Dialogues”, p.64
If I am Sophocles, I am not mad; and if I am mad, I am not Sophocles.