Bushido is realised in the presence of death. In the case of having to choose between life and death you should choose death. There is no other reasoning.
Yamamoto TsunetomoThere is something to be learned from a rainstorm. When meeting with a sudden shower, you try not to get wet and run quickly along the road. But doing such things as passing under the eaves of houses, you still get wet. When you are resolved from the beginning, you will not be perplexed, though you will still get the same soaking. This understanding extends to everything.
Yamamoto TsunetomoIt is better to have some unhappiness while one is still young, for if a person does not experience some bitterness, his disposition will not settle down.
Yamamoto Tsunetomo