What is the most precious thing in your life

Four people arrived at the ferry and they wanted to go to the other side of the river (D3 Gold). Among these four people, one was wealthy, one was Hercules, one had power and one was a writer. Each of them required to go across the river. The boatman said to them: "each of you should give me one thing that you think is the most precious, and if one of you do not give me, I will not send you to the other side of the river." The rich man gave him much money and then went on the boat; the Hercules raised his fist and said: "are you fear? Are you able to stand it?" and then, he went on the boat, too; the man with power said to the boatman: "when you send me to the other side of the river, you do not push go boating any more, and you can follow me to do some relaxed work." The boatman was very happy and lifted him on the boat. Finally, the writer said to the boatman: "the most valuable thing for me is writing, but I can not write momentary, so I can sing a song to you." However, the boatman said: "I also can sing songs, I do not want to hear, but if you really do not have some precious things, you can sing a song, and I will send you to the other side of the river if you sing songs very well." So the writer began to sing songs. After heard, the boatman shook his head and said: "you sing bad, what the power man said is better than you sing." Then, the boatman left away with his boat and did not let the writer go on the boat.