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Albert Camus presents a profound and thought-provoking perspective on the fundamental question of life. He believes that the only truly important philosophical problem is suicide. Deciding whether life is worth living or not is the core issue of philosophy. His reasoning is quite straightforward. Given that this is the crucial problem, it is absurd to think further. Why? Because if the answer is "no," all subsequent reasoning becomes null. This is in the context of the daily absurdity. However, Camus also dedicates a chapter to "philosophical suicide." He views this not as a physical death in itself but as a way to get rid of one's consciousness based on regrets. The existentialist, the absurd man, should never have regrets. If he made a mistake in the past, in the future, he will only project the situation with the appropriate correction.
Camus also refers to Kirilov in Dostoevsky's "Demons." The idea in Dostoevsky's novel is given by the suicidal condition. Kirilov feels that God is necessary and must exist, but at the same time, he knows that God does not exist and cannot exist. His reasoning is clear. If God does not exist, Kirilov is God. If Kirilov is God, he must commit suicide. So, "The Myth of Sisyphus" represents the basis of philosophy and the existentialist current. Although Sartre may have his own philosophical terminology, he cannot express ideas as fluently as Camus. Camus clearly defines the principles of existentialism, in contrast to previous currents of thought.
Finally, Camus defines the existentialist as someone who believes that all moralities are based on the idea that an act has consequences that either legitimate or annul it. A mind filled with the idea of the absurd only considers that these consequences should be regarded with serenity. He is willing to pay. In other words, for him, there can be responsibility, but there is no guilt. At most, he will agree to use past experience to base his future actions on it. This makes a distinction between general (or universal) morality and individual morality. In existentialism, individual morality is above universal morality precisely because the latter does not exist.