After seeing it on my mom's bookshelf as a kid, year after year, I finally read it this past Summer. My favorite section:
Nietzsche's words, "He who has a why to live for can bear with almost any how," could be the guiding motto for all psychotherapeutic and psychohygienic efforts regarding prisoners. Whenever there was an opportunity for it, one had to give them a why- an aim - for their lives, in order to strengthen them to bear the terrible how of their existence. Woe to him who saw no more sense in his life, no aim, no purpose, and therefore no point in carrying on. He was soon lost. The typical reply with which such a man rejected all encouraging arguments was, "I have nothing to expect from life anymore." What sort of answer can one give to that?
What was really needed was a fundamental change in our attitude toward life. We had to learn ourselves and, furthermore, we had to teach the despairing men, that it did not matter what we expected from life, but rather what life expected from us. We needed to stop asking about the meaning of life, and instead to think of ourselves as those who were being questioned by life- daily and hourly. Our answer must consist, not in talk and meditation, but in right action and in right conduct. Life ultimately means taking the responsibility to find the right answer to its problems and to fulfill the tasks which it constantly sets for each individual.
These tasks, and therefore the meaning of life, differ from man to man, and from moment to moment. Thus it is impossible to define the meaning of life in a general way. Questions about the meaning of life can never be answered by sweeping statements. "Life" does not mean something vague, but something very real and concrete, just as life's tasks are also very real and concrete. They form man's destiny, which is different and unique for each individual. No man and no destiny can be compared with any other man or any other destiny. No situation repeats itself, and each situation calls for a different response. Sometimes the situation in which a man finds himself may require him to shape his own fate by action. At other times it is more advantageous for him to make use of an opportunity for contemplation and to realize assets in this way. Sometimes man may be required simply to accept fate, to bear his cross. Every situation is distinguished by its uniqueness, and there is always only one right answer to the problem posed by the situation at hand.