I don't seem to require a lot of sleep. I just - if I get four, five good hours, I'm fine. But sleeping is sort of dull. There's a lot of other good stuff that you can do without just lying down and closing your eyes.

The audience today has heard every joke. They know every plot. They know where you're going before you even start. That's a tough audience to surprise, and a tough audience to write for. It's much more competitive now, because the audience is so much more - I want to say sophisticated.

I'm blessed with good health for which I'm deeply grateful, so for that reason, I feel so good. Everybody else is far more excited about the 90 than I am.

I've worked with the Los Angeles Zoo for 45 years, and we have this magnificent photographer, Tad Motoyama. He takes these wonderful, wonderful animal pictures. All through the years he's given me copies of these pictures. Well, I have all these gorgeous ones, so I said, 'Tad, I want to do a book with your picture on one side.'

I've worked with Morris Animal Foundation for more than 40 years now, and I'm so proud of all they've done to advance veterinary medicine for animals worldwide.

It’s [old age] not a surprise, we knew it was coming – make the most of it. So you may not be as fast on your feet, and the image in your mirror may be a little disappointing, but if you are still functioning and not in pain, gratitude should be the name of the game.

Keep the other person's well being in mind when you feel an attack of soul-purging truth coming on.