摘要：The behavior of a human being is manifestation of his intrinsic nature, acquired genetically, and the extrinsic, which is learned in the society through day-to-day interaction. Therefore, even if one can say that there is a possibility that two individuals will have the same societal exposure it is impossible that they will have identical intrinsic nature (I am cautious about identical twins). This means that, the way each of us deal with the enormous challenges in life or in our day-to-day social interactions are different from others. Ethiopian Journal of Education and Science Vol. 2 (2) 2007: pp. 113-141
