To solve a problem or to reach a goal, you don't need to know all the answers in advance. But you must have a clear idea of the problem or the goal you want to reach.
Bio: Gholam-Hossein Mohseni-Eje'i was the minister of intelligence from 2005 to July 2009, when he was abruptly dismissed. He has also held a number of governmental posts since 1984. Currently he is the first deputy of the Chief Justice of Iran.