Writers! You must give yourself permission, by a daily act of will, to believe in your remembered truth. Do not remain nameless to yourself. Only you can turn on the switch; nobody is going to do it for you. Nobody gave George Gershwin permission to write “Rhapsody in Blue” at the age of 25, when he had only written 32-bar popular songs. Nobody gave Frank Lloyd Wright permission to design a round museum.
— William Zinsser, The Writer Who Stayed, p. 161