June 28, 1970 Back to Timeline Bernstein gives The Principle of Hope speech at the Opening Exercises of the Tanglewood Music Center. Below are a photograph of Bernstein giving the speech, the Opening Exercises program, and the full text of the speech as published by the BSO. http://celebratebernstein.org/wp-content/uploads/2018/02/TMC_19700628_PrincipleofHope.mp3