The American Philosophical Society is a group of people who like to think and talk about big ideas. They are also interested in learning new things and discovering new things. They like to share their knowledge with others. They were founded in 1743 and are one of the oldest and largest scientific societies in the United States. Every year, they hold events and meetings where people get together and talk about science, philosophy, and many other topics. They also publish books and papers that help people better understand the world.