1 | It realizes the meaningful of the continuity in social science rather than a historical break. |
2 | It presents that political thought merged in past is the source of political ideologies of 20th century. |
3 | It analyzes the differences between the political ideologies. |
4 | It grasps the points of tension within liberalism. |
5 | It grasps the conceptions of each political ideologies related with different areas of social reality. |