We should pray for the good ones from among them (forefathers) and learn from their mistakes then life move on, if you think they are all bad then you don't need to (suggestion)
And once you become veteran in criticism you can hardly do the right thing when given chance to try, what we are suppose to do is that whenever you're given a responsibility try as much as you can to discharge your responsibility well if not very well (Experience and Records).
Moreover whenever you think you are the best or the only person that can do it well believe me you can hardly do the right thing (tradition of life).
Wherever we find ourselves we should always think that there are lots of people that are better than us, just that we are opportuned to reach there and they are not (Destiny).
Spread goodness to feel inner comfort and have a happy soul