“I have never let my schooling interfere with my education.”

Source: Soul Music

Widely attributed to Shaw from the 1970s onward, but not known to exist in his published works. It is in keeping with some of his sardonic statements about the purposes and effectiveness of schools. First known attribution in print is in Neil Postman and Charles Weingartner's Teaching as a Subversive Activity (1971), "G. B. Shaw's line that the only time his education was interrupted was when he was in school captures the sense of this alienation."
Attributed

Source: I. Asimov: A Memoir (1994), Ch. 8, Library
Context: I received the fundamentals of my education in school, but that was not enough. My real education, the superstructure, the details, the true architecture, I got out of the public library. For an impoverished child whose family could not afford to buy books, the library was the open door to wonder and achievement, and I can never be sufficiently grateful that I had the wit to charge through that door and make the most of it.
Now, when I read constantly about the way in which library funds are being cut and cut, I can only think that the door is closing and that American society has found one more way to destroy itself.

"The Richest Poor; Edhi’s life in facts, quotes," http://aaj.tv/2016/07/the-richest-poor-edhis-life-in-facts-quotes/ July 9, 2016

Hunger of Memory: The Education of Richard Rodriguez (1982)

Madam Dulla
Atómstöðin (The Atom Station) (1948)

I Ain't Got Time To Bleed (1999)
Context: I'm not knocking private schools, but I owe it to my kids to let them grow up in a place where private school isn't required. They're only in school 6-8 hours a day; they have to live in their neighborhood 24 hours a day. I didn't want them growing up in a place where anybody with the means had abandoned their public schools.