I hate you, Richard Wagner . . . but I hate you on my knees.

I've been all over the world and I've never seen a statue of a critic.

I think it is time we learned the lesson of our century: that the progress of the human spirit must keep pace with technological and scientific progress, or that spirit will die. It is incumbent on our educators to remember this; and music is at the top of the spiritual must list. When the study of the arts leads to the adoration of the formula (heaven forbid), we shall be lost. But as long as we insist on maintaining artistic vitality, we are able to hope in man

What [Louis Armstrong] does is real, and true, and honest, and simple, and even noble. Every time this man puts his trumpet to his lips, even if only to practice three notes, he does it with his whole soul.

Which of my Jewish roots do I follow?

Mozart combines serenity, melancholy, and tragic intensity into one great lyric improvisation. Over it all hovers the greater spirit that is Mozart's - the spirit of compassion, of universal love, even of suffering - a spirit that knows no age, that belongs to all ages.

This will be our reply to violence: to make music more intensely, more beautifully, more devotedly than ever before.