“An unquestioned mind is the world of suffering.”

“It takes great courage to open one's heart and mind to the tremendous injustice and suffering in our world.”

“My mind... It's who I am. I think I'd rather suffer any other injury in the world than have my mind tampered with.”

“Unquestioning obedience is for slaves, the uneducated and the pathetic.”

“An unalterable and unquestioned law of the musical world required that the German text of French operas sung by Swedish artists should be translated into Italian for the clearer understanding of English-speaking audiences.”

“I swore that I would not suffer from the world's grief and the world's stupidity and cruelty and injustice and I made my heart as hard in endurance as the nether millstone and my mind as a polished surface of steel. I no longer suffered, but enjoyment had passed away from me.”