In a world where we are tossed by the turbulent currents of life, we find in the book "The Spirit of Moderation" by Charles Wagner an anchor that stabilizes our feet and restores tranquility and reassurance to our souls. In a smooth and profound style, Wagner guides us to the importance of "moderation" as a basic value for a balanced and happy life. The book shows how excessive complexity and exaggeration in material pleasures lead to soul misery and the disintegration of the social fabric. Wagner calls for a return to "simplicity," "tolerance," and "coexistence," inspired by the wisdom of the first man, who was closer to his nature. The book is not satisfied with simply presenting ideas, but rather provides practical principles for applying the "spirit of moderation" in all aspects of our lives, from our words to our thoughts to our daily behavior.

كان "شارل فاجنر" (1854-1918) فيلسوفًا إجتماعيًا وَقسّيسًا بروتستانتيًا فرنسيًا. اشتهرَ بِدعوتِهِ إلى "اللّيبيرالية الدّينية" وَالتّقرّب بين الطّوائف المسيحية المُختلفة. ترك فاجنر إرثًا فكريًا هامًّا من الكتب وَالمُؤلّفات التي تَناولت مواضيعَ كَالأخلاق، وَالعدالة الاجتماعية، وَالتّعايش السّلميّ.