“The actor has to develop his body. The actor has to work on his voice. But the most important thing the actor has to work on is his mind.” InspirationalMindImportantBodyMotivationalActorsVoiceActingImportant ThingsBest Acting Book:Stella Adler - The Art of Acting: preface by Marlon Brando compiled & edited by Howard Kissel Source: Stella Adler - The Art of Acting: preface by Marlon Brando compiled & edited by Howard Kissel