“Knowledge empowers people with our most powerful tool: the ability to think and decide. There is no power for change greater than a child discovering what he or she cares about. (Speech about Global Warming read on the National Mall for the 40th anniversary of Earth Day, 2010)”

“Curiosity is the single most important attribute with which humans are born. More than a simple desire to discover or know things, curiosity is a powerful tool, like a scalpel or a searchlight. Curiosity changes us. It is also a way to effect change, perhaps even on a global level.”

“Storytellers are the most powerful people on earth. They might not be the best paid-- but they are the most powerful. Storytellers have the power to move the human heart-- and there is no greater power on earth.”

“Zarathustra saw many lands and many peoples: thus he discovered the good and evil of many peoples. No greater power did Zarathustra find on earth than good and evil.”

“In honor of Oprah Winfrey: Even greater than the ability to inspire others with hope is the power to motivate them to give as much to the lives of others as they would give to their own; and to empower them to confront the worst in themselves in order to discover and claim the best in themselves.”

“You never know what you’re going to learn about a situation beforehand. Humility is a powerful tool on the path to greater humility.”