If an actor has to learn of others—often primarily—through his own emotions, it is surely necessary that he learn first to know himself. He need not take himself as a standard of perfection—though poor human nature is apt to lean that way; but he can accept himself as something that he knows. If he cannot get that far he will never know anything. With himself then, and his self-knowledge as a foothold, he may begin to understand others. [3]
3. As an instance of the efficacy of the method, let any one try to tell character by handwriting. It is very simple, after all. Let him take the strange writing, and after making himself familiar with it, measure it by himself, asking himself: “Under stress of what emotion would my own writing most nearly resemble that?” Let him repeat this with each sign of divergence from his own caligraphy: and in a short time he will be astonished with the result. So it is with all studies of character. Without any standard the task is impossible; but weigh each against your own self-knowledge and you at once begin to acquire comparative knowledge of simple qualities capable of being combined endlessly.
Γνῶθι σεαυτὸν Know thyself! It is, after all, the base of all knowledge—the foothold for all forward thought. Commenting on the speech of Polonius: “To thine own self be true,” Irving said:
“But how can a man be true to himself if he does not know himself? ‘Know thyself’ was a wisdom of the Ancients. But how can a man know himself if he mistrusts his own identity, and if he puts aside his special gifts in order to render himself an imperfect similitude of some one else?”