A self-described ‘somewhat combative pacifist and cooperative anarchist,’ Ms. Paley was a lifelong advocate of liberal social causes. During Vietnam, she was jailed several times for antiwar protests; in later years, she lobbied for women’s rights, against nuclear proliferation and, most recently, against the war in Iraq. For decades, she was a familiar presence on lower Sixth Avenue, near her Greenwich Village home, smiling broadly, gum cracking, leaflets in hand.