This book discusses the quintessential aspects of George Santayana’s wide and comprehensive philosophy. Its critical and comparative discussions centre round the problems of Epistemology, Metaphysics, Aesthetics, Ethics and Religion. This makes it all the more interesting.\n\nWhat is noteworthy about this book is that it shows how naturalism serves as a basis of the idealistic philosophy of George Santayana. Moreover, the illustrious part of this treatise is that essence, as discovered by Santayana by the doubting process, serves as the keynote of his whole philosophy.\n\nThe exposition of Santayana’s philosophy on the basis of the above two points is an outstanding feature of the present work. What is captivating about this book is that it shows how the natural gets reconciled with the ideal by making the former the ground of the latter.