Late Post on Shakespeare

I think about this quotation is  from one of the most important parts of the play. This sentence is very simple and in fact it is a daily speech sentence. Somehow, we usually use sentences similar to this quotation. In the play we could understand that Macbeth has changed and he is now a different person from who he is at very beginning. He was accepted that he has done very bad things for himself and for other people by murder but it is too late for change it. So, he knows that he is now this kind of person who does not care about other people and just pay attention to his own success. In life we use this kind of sentences when we break up to trying to change something in our lives and that point is also an life changing points for us.