Nelson Mandela (Anti-Apartheid) Learn more about your ad choices. Visit megaphone.fm/adchoices

Alice Walker (Racial and Gender Equality) Learn more about your ad choices. Visit megaphone.fm/adchoices

Cesar Chavez (Farm Workers' Rights) Learn more about your ad choices. Visit megaphone.fm/adchoices

Martin Sheen (Anti-War and Human Rights) Learn more about your ad choices. Visit megaphone.fm/adchoices

Harriet Beecher Stowe (Abolitionist) Learn more about your ad choices. Visit megaphone.fm/adchoices

Thurgood Marshall (Civil Rights and Law) Learn more about your ad choices. Visit megaphone.fm/adchoices

Henry David Thoreau (Transcendentalism and Civil Disobedience) Learn more about your ad choices. Visit megaphone.fm/adchoices

Muhammad Yunus (Economic Development) Learn more about your ad choices. Visit megaphone.fm/adchoices

Helen Keller (Disability Rights) Learn more about your ad choices. Visit megaphone.fm/adchoices

Elie Wiesel (Human Rights) Learn more about your ad choices. Visit megaphone.fm/adchoices