Does a person have free will? Is a person really fully responsible for his actions? Are our actions predetermined by genes, environment and upbringing? These questions are not idle. The issue of free will concerns almost all concepts that are significant to us. Moral values, law, social principles, political life, religion, government, relationships, guilt and personal achievements - everything important in human life is due to the fact that we consider ourselves and other people to be individuals with freedom of choice. Famous American scientist and philosopher Sam Harris questions the seemingly unshakable postulate of free will. With reasoning and with the help of vivid examples, Harris proves that in fact there is no free will, but this truth in no way destroys our morality or diminishes the importance of political and social freedoms.