This thesis studies the historical and intellectual backgrounds of some influential movements in Saudi Arabia, within a binary framework of liberal/conservative or modernist/fundamentalist. Thus, I have to examine the religious and intellectual differences of those movements that may lead to creating conflicts between them. In addition, this study provides possible solutions to conflicts and schism between schools of thought in Saudi Arabia, by focusing particularly on moderate Islamic thought as a new movement that may promote greater harmony. This thesis concludes that moderate Islamic thought can allow us to obtain a clear and better understanding of the main reasons for the struggle between different movements, and apply that on Saudi society, instead of attacking others who have opposing attitudes or different beliefs. It is also important to mention that this plurality of thought is very important for developing the freedom to express opinions within the confines of the law in the application of religious or philosophical ideas. The thesis also concludes that such approaches will help promote dialogue and understanding between different groups or schools of thought. It is hoped that this can also develop cognitive skills, through the exchange of ideas and views between different schools and intellectual movements