Ahn Jung-geun has already been fuly determined to carry out his mission of assassination lto by marking an alliance of cutting off fingers and 

writing A Man of Courage’s Philosophy of Life. Ahn announced the 15 crimes of lto in order to warn against the Japanese, but Ahn wrote A Man 

of Courag’s Philosophy of Life in order to tell the future generations the situations of the turbulent period of Korea under rhe Japanese 

colonail rule.

In A Man of Courage’s Philosophy of Life, Ahn clarified his historical mission, saying that a hero must meet a proper time and, without a hero, a proper time will come to 

nothing. When it faces the crisis of near-ruin, a nation will collapse without the existence of a hero, he said. 

Ahn also clarified the reason why Hirobumi Ito should be killed as the target of assassination. Thus, Ahn defined Ito story as a rat-like thief who was misleading hi, 

saying, “With indignation, I must do this. I will fulfill my mission.” Ahn also encouraged the Korean people not to lose courage but achieve independence as soon as 

possible. Ahn encouraged his compatriots again and again to work for accomplishing national independence at the earlier date possible. “My fellow compatriots, I urge 

you to accomplish your grand mission.” This passage clarified that the ultimate goal of the Korean people will be national independence. Ahn implied that the Korean 

people should rise against Japan as the mission will not likely be achieved by looking on idly with indifference.