Some of the most significant contributions to modern progress were made by nine men with courage to persevere in spite of outside rejection. These brief biographical sketches of Davenport, Diesel, Goodyear, Nobel, Lake, Maxim, Tesia, De Forest and Sikorsky provide insight into the lives of each inventor and describe their major contributions. These particular choices are not haphazard though they reflect the individuality of each protagonist. The perceptive reader will grasp the vital qualities that all nine had in common. Each inventor was able to envision a place for his work in society and each had the determination to impose his ideas on a hostile world. An intelligent, well written compendium for the student of history or science.