The riddle of everyday life consists in that all of us, biological machines in the determined Universe, nevertheless we feel itself integral conscious subjects that operate in accordance with own aims and make decision freely. In a book "Who for main? Michael Газзанига explains whether everybody bears the personal responsibility for the acts. He tells how due to researches split brain the module of interpretation, compelling to count us, was open, as though we operate under own free will and accept important decisions. An author places all of it in a social context, and then drives us to the hall of court, showing, what relation нейробиология has to the idea of punishment and justice.