"The definition of genius is taking the complex and making it simple."

"The difference between stupidity and genius is that genius has its limits."

"The most beautiful thing we can experience is the mysterious. It is the source of all true art and all science. He to whom this emotion is a stranger, who can no longer pause to wonder and stand rapt …"

"I am not only a pacifist but a militant pacifist. I am willing to fight for peace."

"Life without playing music is inconceivable for me. I live my daydreams in music. I see my life in terms of music. I get most joy in life out of music."