The second edition of this book has explained some of the important issues of scientifically-based philosophy of peace under the celebrated Sufi Principle described as the Unity of All Being, which tends to liberate human ego from its violent involvement in aggression motivating ideas of Race, Nation, Religion and Culture. This Sufi Principle embodies a basic ethics of existence for the inner unification of humankind, in the absence of which a World Parliament-if ever it is created-can never survive and no enforceable law for International Justice can operate. The author considers the thought content of this civilization, originating from the separation of matter and spirit as perverse and treatise terrorism as one of the worst evils of this perversion that its origin from religious fundamentalism. The author draws insights from the leaders of scientific philosophy in the fields of the philosophy of physics, philosophy of evolution and microbiology. This Treatise is a challenge to a consumerist-driven culture and an economics-based Globalization of the present-day world. In the opinion of some highly eminent scholars of Australia and USA, Prof. Begs book is needed after 9/11 and it is antidote to fanaticism and leads into a paradigm shift for the creation of a humane world society.