There's a quote from Sarah Manguso's _300 Arguments_ that I love:
> With great and solemn portent, my teacher announced she would tell us something that her teacher had told her, and that her teacher’s teacher had told him, and so on, back to Yeats: The thing to remember is that no one ever finds out that you don’t know what you’re doing.
> With great and solemn portent, my teacher announced she would tell us something that her teacher had told her, and that her teacher’s teacher had told him, and so on, back to Yeats: The thing to remember is that no one ever finds out that you don’t know what you’re doing.