This study, based on the works of Erich Fromm, is based on the systematic concepts taken into consideration in the study of understanding and explaining human nature. The concepts are defined from the books in accordance with the Erich Fromm concept, for additional information; For detailed descriptions such as life, career, life… The information on the Internet networks, which is considered scientific, has been consulted. The main issues identified in the content of the study are to reveal the reasons and mechanisms of the escape in human nature and to explain the evolutionary needs of the humannature. In addition, the effects of social transformations in shaping the consciousness of the identity acquired by the human being, thus aiming to synthesize information that will shed light on the change in the historical process has been put forward. Many other sources of Erich Fromm have been used to achieve this goal but most of the titles mentioned in the title, to be and to be focused on freedom meticulously. The criticisms directed to Fromm during the study were evaluated in the conclusion part. Although criticisms are often not systematic, Erich Fromm is still shown as one of the most important theorists in explaining the complexityofhumannature.
Key Words: Human nature, freedom, possessing human needs.