An orchestra conductor faces the ultimate leadership challenge: creating perfect harmony without saying a word. In this charming talk, Itay Talgam demonstrates the unique styles of six great 20th-century conductors, illustrating crucial lessons for all leaders.

With help from some surprising footage, Derek Sivers explains how movements really get started. (Hint: it takes two.)

With profound simplicity, Coach John Wooden redefines success and urges us all to pursue the best in ourselves. In this inspiring talk he shares the advice he gave his players at UCLA, quotes poetry and remembers his father's wisdom.

David Logan talks about the five kinds of tribes that humans naturally form -- in schools, workplaces, even the driver's license bureau. By understanding our shared tribal tendencies, we can help lead each other to become better individuals.

We have all changed someone's life -- usually without even realizing it. In this funny talk, Drew Dudley calls on all of us to celebrate leadership as the everyday act of improving each other's lives.

At TED U, Gever Tulley, founder of the Tinkering School, spells out 5 dangerous things you should let your kids do -- and why a little danger is good for both kids and grownups.

Tom Chi has worked in a wide range of roles from astrophysical researcher to Fortune 500 consultant to corporate executive developing new hardware/software products and services. He has played a significant role in established projects with global reach (Microsoft Outlook, Yahoo Search), and scaled new projects from conception to significance (Yahoo Answers from 0 to 90 million users). His current focus is delving into human development issues with social entrepreneurs around the globe, rebo

Leadership doesn't have a user's manual, but Fields Wicker-Miurin says stories of remarkable, local leaders are the next best thing. At a TED salon in London, she shares three.

The world is full of leadership programs, but the best way to learn how to lead might be right under your nose. In this clear, candid talk, Roselinde Torres describes 25 years observing truly great leaders at work, and shares the three simple but crucial questions would-be company chiefs need to ask to thrive in the future.

Leaving a high-flying job in consulting, Angela Lee Duckworth took a job teaching math to seventh graders in a New York public school. She quickly realized that IQ wasn't the only thing separating the successful students from those who struggled. Here, she explains her theory of "grit" as a predictor of success.