TEACHERS

The self-taught man seldom knows anything accurately, and he does not know a tenth as much as he could have known if he had worked under teachers; and, besides, he brags, and is the means of fooling other thoughtless people into going and doing as he himself had done. There are those who imagine that the unlucky accidents of life - life's "experiences" - are in some way useful to us. I wish I could find out how. I never knew one of them to happen twice. They always change off and swap around and catch you on your inexperienced side.
- "Taming the Bicycle