A quote I like a lot.

"Up to now -- since shortly after the Bolshevik Revolution -- most movie makers have been assuming that they know how to make movies. Just like a bad writer doesn't ask himself if he's really capable of writing a novel -- he thinks he knows. If movie makers were building airplanes, there would be an accident every time one took off. But in the movies, these accidents are called Oscars."

--Jean-Luc Godard