This book, The Fourth Way: Navigating Global Challenges for a Sustainable Future, explores the defining challenges that confront humanity in the 21st century: the rise of the digital society, unprecedented population aging, intensifying social polarization, and the escalating climate crisis. Referred to collectively as the "four new normals," these intertwined forces pose systemic risks that current sustainable development frameworks have proven inadequate to address.The book aims to propose a bold and integrative response—what the author calls the Fourth Way. Grounded in both Eastern and Western philosophical and religious traditions, this alternative framework seeks to transcend the limitations of neoliberalism, authoritarian socialism, the Third Way, and Degrowth ideologies. Instead, it envisions a pathway toward Sustainable True Development, built on the dual pillars of inclusive true growth and green true growth.By rethinking the goals and ethics of development in the digital age, the book calls for a transformation in how humanity relates to itself, to technology, and to the planet. It offers a multidisciplinary synthesis that bridges economic theory, environmental stewardship, and spiritual reflection, ultimately advocating a humane and ecologically grounded model of progress. This work is for scholars, policymakers, and all who seek a principled and future-oriented alternative in the face of global uncertainty.