" It was only because men learned to cooperate that we could make the great discovery of the division of labor; a discovery which is the chief security for the welfare of mankind. To preserve human life would not be possible if each individual attempted to wrest a living from the earth by himself with no cooperation and no results of cooperation in the past. Through the division of labor we can use the results of many different kinds of training and organize many different abilities so that all of them contribute to the common welfare and guarantee relief from insecurity and increased opportunity for all the members of society. It "

― Alfred Adler , Understanding Life