Speaking truth to power is a non-violent political tactic, employed by dissidents against the received wisdom or propaganda of governments they regard as oppressive, authoritarian or an ideocracy. The phrase originated with a pamphlet, Speak Truth to Power: a Quaker Search for an Alternative to Violence, published by the American Friends Service Committee in 1955. Speak Truth To Power is also the title of a global Human Rights initiative under the auspices of Robert F. Kennedy Human Rights. Practitioners who have campaigned for a more just and truthful world have included Apollonius of Tyana, Vaclav Havel, Nelson Mandela, Archbishop Desmond Tutu, Mahatma Gandhi, the Dalai Lama and Elie Wiesel.