It is what you read when you don’t have to that determines what you will be when you can’t help it.
Charles Francis Potter (1885–1962) American Unitarian minister, theologian, humanist, activist
Speech, Dayton, Ohio (Apr 1927)
Often misattributed to Oscar Wilde. More discussion here: What You Read When You Don’t Have To, Determines What You Will Be When You Can’t Help It – Quote Investigator
