Civil Rights Activist Inspired by Plato

Viola Liuzzo, killed by KKK members in Alabama in 1965 and the subject of the documentary film The Home of the Brave, shown in April at the San Francisco International Film Festival, was apparently enamoured of Plato's Dialogues:

Viola’s uncommon cultural thirst was nurtured in the midst of social convulsions; her imagination and intellect stimulated by philosophers and writers, such as Plato and Thoreau. From Socrates’ Protagoras she would quote: “No one who either knows or believes that there is another possible course of action, better than the one he is following, will ever continue on his present course when he might choose the better. To ‘act beneath yourself’ is the result of pure ignorance, to ‘be your own master’ is wisdom.”