If you're looking for your own idea of your own identity you know the human genome may not be the best place to look for it. You're just looking at a bunch of viruses.

We really depend on viruses for our complete survival.

One of the big challenges now is to figure out just how many viruses there really are in the human genome. So far the estimate is 8.3% of our genome is virus, but it actually could be a lot higher.

Viruses don't just make us sick. They can actually sometimes end up in our genomes.

The hand is where the mind meets the world.

The reason that viruses are so hard to fight, the reason for example we need a flu virus every year is that they evolve very fast.

We may be sucking in all sorts of viruses and we really don't know the full range of them. Maybe we've got flu virus inside of us. That's a possibility. Maybe we're part flu.

Borna virus is not a retrovirus. It doesn't actually insert its own genes into our cells. What it does is just hangs out near our DNA and uses some of the molecular machinery to copy itself.

Evolution is a large political controversy as to what should be taught in the schools. But there is no scientific controversy that we evolved when we talk about evidence from fossils and DNA.

Evolution has led to some populations of people being able to digest milk without much trouble when they're adults as well.

Everybody can digest milk when they're little.

Hope is the last thing a person does before they are defeated.

I am thankful and blessed to be in a position where I have learned as much from those that have taught me as I have from those that I continue to teach.

Leap and the net will appear.

Happiness is a Swedish sunset it is there for all but most of us look the other way and lose it.

All these years of thinking, ending up like this: In front of all this beauty, understanding nothing.

I have this theory: If you forgive someone, they can't hurt you anymore.

Nothing of character is really permanent but virtue and personal worth.

I don't know how much longer I can complain.

Of course a certain number of scientists have to go mad, just to keep the tradition alive.

As I discovered music, especially Rock 'n Roll, new territory was opened to me. I was lured by the unbridled rhythm of this art form. It was like gasoline on the fire of my youthful spirit.