As long as the survival instinct is still present, people can weave hope for themselves in any situation, even if it is extremely poor. Dostoyevsky's life labor prisoner was chained to the wall at the beginning of his sentence, but they still have their hope: one day, like other laborers, they are allowed to leave this wall and walk around with their feet around. If there is no hope, no one can live. What is the philosophy that can be learned from the passage? ['Survival is the first priority.', 'The ideal is the spiritual pillar of survival.', 'Put to death.', 'The purpose of survival is the development.']