Okay - I told you they'd get harder. The last quotation was indeed Dante. It's most frequently identified, at least these days, in relation to JFK, who spoke the famous sentence at the signing of a charter establishing the German Peace Corps in 1963.
And now, a lesser known quotation from a very famous writer:
"I write entirely to find out what I'm thinking, what I'm looking at, what I see and what it means. What I want and what I fear."
Comments, remarks, agitations, guesses, imprecations are welcome. And no, Jon, you can't have any cookies.