a self taught person
Etymology: from ML autodidactus, from Greek autodidaktos self-taught, from aut- + didaktos taught, from didaskein to teach
Usage:
The adjectival form, autodidactic, is used more often.
Members of

The only thing that interferes with my learning is my education. – Albert Einstein
I never let schooling get in the way of my education. – Mark Twain
A fool's brain digests philosophy into folly, science into superstition, and art into pedantry. Hence University education. - George Bernard Shaw