"I don't know a goddamn thing about movies, but I know I can make a better film than that,"
My goal as a software developer is to become the video game equivalent of this quote. I develop games (and dabble in game engines) mostly for fun, but I was always intimidated at actually releasing anything. I developed half-finished games, threw them in the trash, and started over again. It was actually terrible games that got me to take development a bit more seriously.
"Even I can make a better game than that."