How to Get People to Read Your Stuff

I picked up a hitchhiker yesterday, and he was different from the run of the mill others of his breed. He was quite articulate, with knowledge in many areas, and claimed to have graduated in Mechanical Engineering, but decided to live the adventure of the road. We got to talking (among many other subjects) about books, and he told me the words of an author (I really wish I remembered the author's name) who said a writer must write everything that is in his head.
I realized at the time that I don't have that in me. One of the things for which I am most grateful is that others do not know my innermost thoughts. I'm willing to let God know them because He created me and gave me my weaknesses, and He knows them anyway.
Even though I don't believe I think particularly abnormal things, I don't dare to vocalize everything. I realize, if I did, people would come long distances to read my stuff, and I would like that, I think, but as far as I'm concerned, the price is too high...