Intuitively, she had engaged in an act of passive resistance, a precept named by Leo Tolstoy and embraced by Mahatma Gandhi,” writes the historian Douglas Brinkley in a wonderful biography of Parks. It was more than a decade before King popularized the idea of nonviolence and long before Parks’s own training in civil disobedience, but, Brinkley writes, “such principles were a perfect match for her own personality.