We must not overlook the role that extremists play. They are the gadflies that keep society from being too complacent. – Abraham Flexner, Universities, 1930

The minority, the ruling class at present, has the schools and press, usually the Church as well, under its thumb. This enables it to organize and sway the emotions of the masses, and make its tool of them. – Albert Einstein, letter to Sigmund Freud, 1932 July 30th

Forgive him, for he believes that the customs of his tribe are the laws of nature. – George Bernard Shaw

Common experience shows how much rarer is moral courage than physical bravery. A thousand men will march to the mouth of the cannon where one man will dare espouse an unpopular cause. – Clarence Darrow, Resist Not Evil