Stephen Hicks explains the importance of free market capitalism by elucidating on its benefits, such as an improved standard of living for human beings through the effects of increased productivity and wealth. He describes how sciences like politics and philosophy are needed to defend liberty, as liberalism has already proven its point in an economic sense. In order to understand its entire scope, Hicks also points out the positive and negative cases for freedom. He speaks, as well, about the main ideas and ideologies like socialism, communism, and fascism, amongst others, that have been constantly in opposition with freedom because they respond to a determined morality, in most cases, inclined towards authoritarianism. He continues with this exercise while describing the present predominant intellectual currents in many parts of the world that collide against free market capitalism. Finally, he compels liberal advocates to focus their energy in favor of the case for a free society, which has evidenced to be the outmost ethical and moral system in regards to the individual.