Visionary leaders can be found in various fields and domains, such as business, politics, science, and arts. For example, Steve Jobs, the co-founder and former CEO of Apple, revolutionized the technology industry with his vision of creating products that combine design, functionality, and user experience. Martin Luther King Jr., the civil rights activist and leader, inspired millions of people with his vision of a society where people are judged by the content of their character, not by the color of their skin. Marie Curie, the Nobel Prize-winning physicist and chemist, pioneered the research on radioactivity and discovered two new elements, polonium and radium, with her vision of advancing the scientific knowledge and understanding of the natural world. Oprah Winfrey, the media mogul and philanthropist, created a global media empire with her vision of empowering and inspiring people, especially women and minorities, through her talk show, magazine, network, and foundation.