It’s not a weakness or character flaw to be wrong, make a mistake or change your mind. In fact, in areas of knowledge, technology and competition, it’s a mark of courage, character and flexibility to be willing to cut your loses quickly and practice the reality principle in everything you do. I think that once you say I was wrong or I made a mistake or I changed my mind, the issue is largely over. One must be prepared to deal with the world as it is rather than the way you wish it were or the way it might have been in the past. Face the truth whatever it is and be honest with yourself and everyone around you. Always be open to reevaluating your goals and objectives in the light of new information, technology, or competition.