![Allan Gregg in Conversation (Audio) show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/036/132/small/allan-gregg-in-conversation-audio.jpg)
Summary: In a new biography, Walter Isaacson argues that Albert Einstein's brilliance stemmed from his imagination and rebellious personality. His book is based on Einstein's newly released personal letters. It's called "Einstein: His Life and Universe".