We can teach a good, formal lesson on forgiveness as a Christian virtue and all the doctrines that are attached to it. But to be in a real-life situation, a work camp or a trip or some other activity with young people where real forgiveness needs to happen, that's a different situation altogether. And that is where the deepest learning will occur.
In self-giving you must be so careful of egotism. You must be so careful when you are aiding others in their liberation not to have a sense of self.