This book delves into the essential concepts that are dealt with in philosophy. Concepts like language, knowledge, values and existence; which are often the themes of philosophical discourse have been discussed in detail. This text studies, analyses and upholds the pillars of philosophy and its utmost significance in modern times. It presents researches and studies performed by experts across the globe. It strives to provide a fair idea about philosophical concepts to the readers of this book and help them in developing a better understanding of the latest advances within this field. Coherent flow of topics, student-friendly language and extensive use of examples make this book an invaluable source of knowledge.