""A Thanksgiving Sermon"" is a book written by Robert G. Ingersoll, an American lawyer and orator known for his advocacy of freethought and agnosticism. The book is a transcript of a sermon delivered by Ingersoll on Thanksgiving Day in 1897. In the sermon, Ingersoll discusses the importance of gratitude and thankfulness, and how these virtues can improve our lives and society as a whole. He also touches on themes of freedom, justice, and the pursuit...