“To remain silent and indifferent is the greatest sin of all.”

“Those who kept silent yesterday will remain silent tomorrow.”

“Indifference to me, is the epitome of all evil.”

“I am not so naïve as to believe that this slim volume will change the course of history or shake the conscience of the world. Books no longer have the power they once did. Those who kept silent yesterday will remain silent tomorrow.”

“And action is the only remedy to indifference, the most insidious danger of all.”

“The opposite of love is not hate, it's indifference. The opposite of art is not ugliness, it's indifference. The opposite of faith is not heresy, it's indifference. And the opposite of life is not death, it's indifference.”

“I remember he asked his father, "Can this be true? This is the twentieth century, not the Middle Ages. Who would allow such crimes to be commited? How could the world remain silent?" And now the boy is turning to me. "Tell me," he asks, "what have you done with my future, what have you done with your life?" And I tell him that I have tried. That I have tried to keep memory alive, that I have tried to fight those who would forget. Because if we forget we are guilty, we are accomplices. And then I explain to him how naive we were, that the world did know and remained silent. And that is why I swore never to be silent whenever and wherever human beings endure suffering and humiliation.”