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: Rupert Chawner Brooke was an English poet known for his idealistic war sonnets written during the First World War, especially "The Soldier". He was also known for his boyish good looks, which were said to have prompted the Irish poet W. B.