You can move on, or if something gets overworked and you can put it down, cover it up, or something, and then come back to it and take it back to a place where you were still excited about it. I’m excited about having that opportunity again. I’m probably going to buy some land, but I don’t want to have agriculture be such a huge part of my life. As much as I believe in agriculture—and I think it’s very important that people know how to grow their own food—it’s another thing to take it on as another business and try do that at the same time as having an art career. I would not recommend it.

This is a French expression, silence radio, which is used in the navy, for example—when you cannot use the radio because the enemy is near. It’s not an expression I use regularly; I used it once, maybe, to describe my period of inner silence, which mostly happens when I’m back home, coming from Houston. The long weeks or months of silence. So it’s the opposite of inspiration; it’s the time of doing other things. Waiting.

There’s a first part of observing the thing, or having the idea, but then a huge amount of the next step’s work is: “What do I want to do about it? What form should it take? What am I going to do now do about it having observed it?” That is sometimes a part where it can take a long time to work out. Sometimes I get stuck. Sometimes I change my mind or have to think of very different strategies to figure out what the right one is.

These days I can usually calm that particular critic down by feeding her a biscuit and giving her a break, although in the early days I sometimes had to take a week off before she’d take a more kindly view of the work in progress.

But look at what we can do at a place like Caltech, with scientists from the Middle East to Europe to Asia to America.

Today I was reading the latest issue of Nature, and somebody had written an editorial that said scientists should be basically directing their work to the service of society by making the discoveries that are relevant. The problem is I don’t know what’s relevant!

We started at Caltech asking very simple questions: how do we understand the molecule dynamics or the dynamics of molecules, emotions and so on, molecules but in a coherent fashion.

One of them—I forgot the others— that I thought was really interesting is, Don’t take yourself too seriously. And I believe in that—I think I believe in that.

Professors are writing more proposals chasing less research money, which reduces the time available for creative thinking.

I hear repeatedly, particularly in developing countries: "Applied research is what we need."