Chapter 2 - Alexander Graham Bell - How They Succeeded by Orison Swett Marden
He is most known for his pioneering work on developing the telephone, but Alexander Graham Bell’s interest in transmitting speech led him to experimenting with communication and medical research. He also worked on techniques to teach speech to deaf people and worked with Helen Keller among others. In addition to being an inventor and scientist, Bell was a founding member of the National Geographic Society and was president of the institution for eight years.