There are many other aspects of Proverbs that I will not tackle (they are very interesting though, for example, all the comparisons and contrasts of themes like the froward vs. the righteous man, the wise vs. the foolish, etc. - there are many key verses as well).
Anyway, a concluding thought however I will leave with this series for now, and that is: God's truths must be taught and proclaimed to others despite our own personal set backs. Again, Solomon is the worse object lesson for the many lessons he taught in Proverbs, and yet God used him to instruct his son (and consequently us also). Many today feel that they have 'no right' to correct error or to teach what is right on the basis that they themselves have done wrong. Certainly, example is more forcible than precepts, but if we carry this to an extreme then no one in this world has any right to instruct. Thankfully, God does not think that way. To be sure, we must maintain a good testimony before others in order to exemplify what we are teaching, but if there is failure, then confession and restitution is in order, but then after that, one should never think that they have no right to proclaim what is objectively right or wrong. Furthermore, it really shouldn't matter who God desires to use in delivering the lesson, we must, as His children, recieve the instruction as though God himself was the instructor, because ultimately He is. This should encourage every parent to take confidence in training their children well, even if when they were kids they somehow have done perhaps worse things. Every preacher, should faithfully warn his people, old and/or young, even though he is not an absolutely perfect person. In fact, when people get defensive because of strong rebuke, it is not uncommon for some to say 'oh yeah? but you're not perfect yourself...' as though that excuses them from the admonition. (Please don't get me wrong, I do believe in pastoral disqualification in matters of doctrine and morals)
I do hope that this conclusion is somewhat understandable, even though it is a tad bit lengthy.