"On the Congress in Rome (Conference held by the representative of the Portuguese Congress of Free-thinking Thoughts)" - this book, written by Lima, S. de Magalhães (Sebastianu de Magalhães), is the result of an academic report dedicated to the discussion of important aspects of freedom of speech and religion. The author examines the importance of the free exchange of ideas in society, paying attention to the historical and contemporary contexts in which religious and philosophical discussions arise. The book "On the Congress in Rome" is an important contribution to the knowledge of the principles of intellectual freedom and religious tolerance, and inspires readers to think about the relevance of these issues in our time.