It is extreme arrogance for one to think he is the only one who can govern his country and nobody else can do it. We're all human. After 10, 15 years you get tired, you run out of steam and ideas, you have to give a chance to somebody else. And whether you yourself are inclined to stay on, all those around you are pushing you to stay on for what they will gain. One has to have the strength of character to say the time has come to move on...unless you are a king.