You have seen so much of the outer world and had so many experiences of people, places, and things—and of course those experiences will keep coming. But now, in the second half of your life, as the outer world seems more unstable and dangerous than ever, we want you to take the same rapacious curiosity that once thrust you all over the planet with a hungry, fascinated appetite, and we want you to turn it inward.
We must love them both—those whose opinions we share, those whose opinions we don't share. They've both labored in the search for truth and have helped us in finding it.