This is a collection of articles written by the author in different years and united by one theme - the defense of the concept of "reasonable egoism" as the ethical basis of a free capitalist society. The author convincingly proves that only within the framework of a system that puts the rights of the individual and reason at the forefront, people can freely develop and find happiness without being enslaved by dictators, the state and other people. This means that only such a system can be recognized as moral and corresponding to human nature.