It’s wasting time to listen to music when you go outside because there are so many interesting noises. For example, every time it rains, I open the window and put the recorder outside. I should always be ready to be surprised, like by the siren of a patrol car in Barcelona and other cities. I hit things, on the street or anywhere, to check the sound—until I find the perfect idea of sound. I haven’t found it yet and am always searching.

I have a habit of – thought habits. I try to total up words in a phrase or a sentence and then divide it to see if I get an even number. Like true love divided by two is four. There’s four words in each things, four and four. ... So, I don’t want an odd number, I want an even number. I do that a lot in my head.

So Tim, I wear the SUBPAC Wearable Physical Sound System while I commute on the subway to my office. And sometimes I wear it while I work at my desk. You strap the system to your back and chest, and it lets you feel the vibration of music through your whole body.

Do, occasionally, give in to temptation. Wash the kitchen floor, hang out the washing. It’s research.

When I have a lot of pain, I try to confuse my mind to forget about the pain and think about the distance. I don't want pain to be in my mind, because I'd really lose focus on running. After winning, you won't have that pain, but it comes later. The marathon is hard; the second day, you don't go up or down stairs.

Only the disciplined ones are free in life. If you are undisciplined, you are a slave to your moods. You are a slave to your passions.

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.

Our life here is simple, very simple. Get up in the morning, go for a run, come back. If it is a day for cleaning, we do the cleaning, or we just relax. Then go for lunch, massage, the 4 o'clock run, evening tea, relax, go to sleep. As simple as that.