Everybody can’t avoid to use psychological concepts to make sense of one’s own and others’ behavior in the choices, decisions and predictions that are made. Yet common sense psychology can’t prove sufficient to meet the challenges of occupations that require leadership, vision, accountability in dealing with people, groups and cultures. This leads to propose to place Psychology among the disciplines that are fundamental to address political reasoning and support to decisions, due to the relevant role that it is currently playing in the advancement and practice of Law , Economics, Politics and Intercultural relations. Psychology can provide the basic elements of knowledge required to understand the foci and main strategies of Psychological inquiry. This to meet the questions most people raise about the foundations and functioning of human mind in light of evidence based findings, and thus to contrast false beliefs and stereotypes about individuals and cultural differences.