Fundamental beliefs about knowledge, reason, morality, existence and the concepts behind them are the basic elements of any philosophy. It is these philosophical inquiries that had led to the advancements in present society, culture and language. This book is a valuable compilation of concepts, ranging from classic to modern philosophies such as classical Greek philosophy, behaviourism, existentialism, marxism, empiricist philosophy, and other contemporary schools of philosophy. It includes both philosophical theories and their implications in context of various literary and cultural studies. The extensive content of this book provides the readers with a thorough understanding of the subject.