In this foundational work, Dr. Muhammad Shahrour presents a revolutionary re-examination of core Islamic concepts. He meticulously distinguishes between 'Islam' as universal submission to divine law and 'Iman' as the specific articles of faith. Shahrour argues for a contemporary, humanistic ethical framework derived directly from the Quran, aiming to liberate the text from traditional interpretations and build a progressive system of values relevant for the modern world. The book challenges readers to rethink their understanding of faith, ethics, and the core message of Islam.