Le Bien envers Tous is a book essentially devoted to the unifying principle of exemplary and ethical leadership and its implications for building a truly democratic and prosperous nation. Drawing inspiration from the Second Inaugural Address of former U.S. President Abraham LINCOLN, the author has provided an in-depth analysis of the Principle, Good for All, which guided LINCOLN during his presidency and especially during the U.S. Civil War. According to the author, this principle is universal in character, with profound implications for national unity, nation-building on solid foundations, national security, social well-being, the self-fulfillment of citizens, and their capacity to create national wealth.