Julian Simon was an economist who believed that people are a positive force for the world. He thought that if we use our creativity and resources, there is enough food, energy, and materials for everyone. He believed that new ideas, technology, and better ways of doing things can help solve problems like hunger, poverty, and pollution. He argued that instead of worrying about running out of resources, we should focus on creating more - like finding new sources of energy or producing more food. He said that with the right attitude and outlook, we can make the world better and our lives more enjoyable.