Spencer's theory of social evolution holds that all societies change from simple to complex through natural processes. This led him to appose all forms of governmental control of social life.

Due to the logical similarities with Darwin's Theory of Evolution, Herbert Spencer's views on evolution of societies were known as social Darwinism.

Nineteenth Century

Auguste Comte

As a scientist, the sociologist  ensures that he reamins objective and controls his/her personal preferences and prejudices to understand clearly rather than to judge normatively.