Everyone understands their weaknesses. Though a lot of them say that they have none. However, saying and thinking that is a weakness too, infact the biggest one, as these people cannot even confide to themselves.
Conquering the weakness become more laborious with such people as their ego comes in between them and their own self.
When once in all, I would feel that I have conquered my weaknesses into my strengths, I shall freely say - hey I have learnt to Live!