Christianity is no different from any other part of life in this respect: there are people who are older than we are, and people who are younger. We can be learning and teaching, just by living lives with other people around. Titus 2 is a chapter that talks about this aspect of life. How it should work, what should we look for in 'teachers'. In a world that is focussed more and more on 'me' and 'my needs', how do we live, and learn, together?