An exclusive excerpt of one letter from David Suzuki's forthcoming book Letters to My Grandchildren. In the book, Suzuki offers grandfatherly advice to his five grandchildren, recounts stories from his own childhood, and explores what makes life meaningful. As he ponders life's deepest questions and offers up a lifetime of wisdom, Suzuki inspires us all to live with courage, conviction, and passion.

Letter titled "In search of roots".