"Diderot and the Encyclopædists (Vol. 1 of 2)" by John Morley is a historical account written in the late 19th century. This work explores the intellectual and literary contributions of Denis Diderot and his contemporaries, particularly in the context of the French Enlightenment and the lead-up to the French Revolution. The book likely aims to illuminate the ideas and significance of the Encyclopédist movement as a transformative force in society." "The opening of the book introduces a preface by John Morley, who outlines the purpose behind this study, which is part of a broader examination of the literary foundations of the French Revolution. Unlike the more commonly known figures of Voltaire and Rousseau, Morley emphasizes the lesser-appreciated contributions of Diderot and his circle. He presents the Encyclopædia not merely as a collection of knowledge but as a significant symbol of social change, indicating that its emergence marked a fundamental shift from religious to secular thinking, illustrating a growing belief in the potential for human improvement and enlightenment." (This is an automatically generated summary.)