Oh ya, I doubted more than expected. I had doubts all the time. The way was extremely, extremely difficult. … At one point I had to describe what I am doing to a person who is a great intellectual but not a scientist, and I told him what we felt is that we are climbing mountains in order to reach the climax – and these mountains are like the Everest, the biggest most difficult to climb – only to find out that there is another mountain waiting behind it to be climbed afterwards. So every climbing was an achievement but there was a bigger problem behind it or above it. I had lots of minutes that I didn't expect, but I thought science in general and this science particularly is worth the effort – even if we would never get the ultimate result.

If you get stuck, get away from your desk. Take a walk, take a bath, go to sleep, make a pie, draw, listen to ­music, meditate, exercise; whatever you do, don’t just stick there scowling at the problem. But don’t make telephone calls or go to a party; if you do, other people’s words will pour in where your lost words should be. Open a gap for them, create a space. Be patient.

You run, eat, sleep, walk around - that's how life is. You don't get complicated. The moment you get complicated it distracts your mind.

Sometimes when I'm in the first round or second round, and I'm not playing well, I say, okay, just accept it. Don't get frustrated. Just accept and focus.

Very large bugs.

Mr. Rogers lives on. There’s so many legions of people that grew up with him, and they’re still in a way growing up with him. He, of course, was a minister. ... And the children of the show, in the neighborhood, are his ministry. And what a beautiful thing that is. So I, to this day, when someone says, “What are you most proud to have accomplished?” I am so proud to have been a part of that.

Perfection is always a desired goal, but it cannot be a primary goal. Expression has to be the primary goal, because otherwise, there is no need for an actual person to be there.

When our children were born.

I love to break rules.

Those times when I feel equilibrium, maximum consciousness, and clarity.