Few things so intriguing wonder about as the development of human behaviour. The adult human being becomes marvellously adaptable, functioning within a complex society. How he to this point from a beginning as highly dependent, noncapable, newborn is a question of intellectual interest and importance. One part of the answer to this question, to be sure, lies in understanding of the processes of growth and development, characteristic properties shared by all living things. The other part, relating to different set of circumstances in the life of the individual, learning. The human skills, appreciations, and reasonings in all their great variety, as well as human hopes, aspirations, , and values, are recognized depend for development largely on the events learning.