This document discusses the concept of immaturity and the importance of using reason freely and publicly. It makes several key points: 1) Immaturity is an inability or unwillingness to think independently and instead relying on external authorities. True enlightenment requires having the courage to think for oneself. 2) Most people remain willingly immature because it is easier than independent thought. Guardians encourage this by making independent thought seem dangerous. 3) For a public to become enlightened, freedom of public reason and discussion is necessary. Private duties can reasonably restrict private thought but not public discourse. 4) Clergy have a duty to teach official doctrine but as scholars they should be free to critique doctrines and