The book "A Discourse on the Life and Work of Thomas Paine" is a famous work of the American writer Robert Greene Ingersoll. In this work, the author examines the life and contributions of the outstanding political figure Thomas Paine, who was an important figure in American and world history. Through keen observation and careful study of Paine's biography, Ingersoll reveals to the reader not only the facts of Paine's life and career, but also the important ideas and principles he espoused. This work encourages reflection on important issues of freedom, truth and justice, and also inspires active citizenship and the struggle for the ideals that Thomas Paine himself considered important.