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When I started out in 1960, I thought it might possibly last a couple of years. I never expected it to last 42. I take great satisfaction in that longevity.

I didn't understand the advantages of staying active until I was about 27.

I had one of my best years in 1991; I was 31. I made a renewed effort to work harder. I got better at my diet. I paid attention to how much sleep I got. I was always someone of routine. I became more strict.

Now that I near 80, I realize with wistful pleasure that on many occasions I was 10, 20, 40, even 50 years ahead of my time.

I'm what is known as a 40-year overnight success.

My career has been a gradual climb. I think that's part of the reason why I've had longevity.

I had years of experience that I still needed to accumulate and go through.

I believe in practicing prudence at least once every two or three years.

Do you know how many concerts I've done in my whole life, in more than 35 years of performing? Sixty-four.