A really wise post. It is so true that is hard for humans to admit that they have made a mistake, especially to admit it to themselves. But is also true that we learn from failure, even more than from things we did right. Recognizing the problem is the first step to recovery. Reviewing our actions helps us to develop our character and to become a better person. Your father is a really wise person, I will remember these advise! Thank you for sharing these meaningful words :)