On the TED Radio Hour this Sunday, 13th August

We usually get wiser with age, but that doesn't mean we have to grow up to wise up. This hour, TED speakers explore what it means to find wisdom at every stage of life.

We all stumble across similar ideas as we age, and some of these revelations have passed into the books we love. Journalist Joshua Prager explores the stages of life through quotes from great writers.

When Adora Svitak was 12, she gave a TED Talk on what grownups can learn from children. Now at age 18, and a sophomore at UC Berkeley, Svitak reflects on the message she shared

-- South African writer and conservationist Boyd Varty has spent his entire life among wild animals. He describes how he discovers "new old ways" by observing the natural world

Advocate Tony Porter's wisdom focuses on masculinity and ending violence against women. He explains how he draws on his own upbringing to help the next generation of men redefine manhood.

Psychiatrist Robert Waldinger is the director of a 75-year study on happiness and satisfaction. He shares what he has learned, as well as his wisdom on how to find fulfillment.