Beyond Good and Evil by Friedrich Nietzsche Chapter 2 Page 41

eyes, and equally so his regained security.

Such a hidden nature, which instinctively employs speech for silence and concealment, and is inexhaustible in evasion of communication, DESIRES and insists that a mask of himself shall occupy his place in the hearts and heads of his friends; and supposing he does not desire it, his eyes will some day be opened to the fact that there is nevertheless a mask of him there — and that it is well to be so. Every profound spirit needs a mask; nay, more, around every profound spirit there continually grows a mask, owing to the constantly false, that is to say, SUPERFICIAL interpretation of every word he utters, every step he takes, every sign of life he manifests.

41. One must subject oneself to one’s own tests that one is destined for