Every artist has thousands of bad drawings in them and the only way to get rid of them is to draw them out.

Anyone can negatively criticize - it is the cheapest of all comment because it requires not a modicum of the effort that suggestion requires.

Eschew the ordinary, disdain the commonplace. If you have a single-minded need for something, let it be the unusual, the esoteric, the bizarre, the unexpected.

I'm still astonished that somebody would offer me a job and pay me to do what I wanted to do.

All of you here have one hundred thousand bad drawings in you. The sooner you get rid of them, the better it will be for everyone.

You've got a million bad drawings in you; you better get started.

Mark Twain's Roughing It is a book that many people don't know about, but I highly recommend to anybody at any age.