This document summarizes Lawrence Kohlberg's theory of moral development, which proposes that moral reasoning develops through six stages grouped into three levels - pre-conventional, conventional, and post-conventional. It describes the characteristics of reasoning at each of the first four stages, focusing on obeying rules to avoid punishment (Stage 1), self-interest exchange (Stage 2), interpersonal accord and expectations (Stage 3), and upholding laws and social order (Stage 4). An example is given to illustrate potential responses from each of these stages.