On buses and trains, I always think about the inexhaustible variety of human genes. We see types, and occasionally twins, but never doubles. All faces are unique, and this is exhilarating, despite the increasingly plastic similarity of TV stars and actors.

I think any activity you have your kids in, you're all trying to live vicariously through them. And you're jealous of the kid that's naturally more talented or has the facility, the body, the genes, or the God-given talent. People get jealous of that.

People's genes can say a great deal about their health. There are genes that reveal an increased likelihood of getting cancer, heart disease or Alzheimer's.

The story of Noah, like other stories in the first 11 chapters of Genesis, are archetypal. Noah's story tells us that human beings have an inherent tendency towards violence both towards their fellow human beings and towards the creation itself. The story tells us that this violence grieves God.

Once we understand how molecules are formed, we can manipulate them. If you can manipulate molecules, you can manipulate genes and matter, you can synthesize new material - the implications are just unbelievable.

It's not a coincidence that the Bible starts with Genesis. Most people really want to know where we came from and where everything around us came from. I like to strongly push the scientific answer. We have evidence. We no longer have to rely on stories we were told when we were young.

Talent is an accident of genes - and a responsibility.

The difference between microeconomics and macroeconomics is a bit like the difference between biology and medicine. Knowing that certain genes increase the risk of cancer is relatively easy. Figuring out exactly which people will get sick, or how to cure them, is a lot more complicated.

I like what I hear as a resulting combination of these two strands... something of a combination of familiarity and, for lack of a better word, strangeness.