"A book is a version of the world. If you do not like it, ignore it; or offer your own version in return."
I constantly see people rise in life who are not the smartest, sometimes not even the most diligent, but they are learning machines. They go to bed every night a little wiser than they were when they got up and boy does that help, particularly when you have a long run ahead of you.
I am always glad to think that my education was, for the most part, informal, and had its roots in the real world.