Original artwork, not a still
To "know thyself" must mean to know the malignancy of one's own instincts and to know, as well, one's power to deflect it.
Behind the line
What it means
Our interpretation.
Menninger says knowing yourself takes courage. You have to see how harmful your own instincts can be, and also recognize that you can steer them aside. It's self-knowledge as both an honest look in the mirror and a sense of control.
Context reviewed
