For a word to be spoken, Ged answered slowly, there must be silence. Before, and after. Then all at once he got up, saying, I have no right to speak of these things. The word that was mine to say I said wrong. It is better that I keep still; I will not speak again. Maybe there is no true power but the dark.
Chapter 9 - Earthsea Books - A Wizard of Earthsea (1968)