The more familiar the world becomes, the less information your brain writes down, and the more quickly time seems to pass.

I always bounce my legs when I'm sitting.

The three-pound organ in your skull - with its pink consistency of Jell-o - is an alien kind of computational material. It is composed of miniaturized, self-configuring parts, and it vastly outstrips anything we've dreamt of building.

Knowing yourself now requires the understanding that the conscious you occupies only a small room in the mansion of the brain, and that it has little control over the reality constructed for you.

What a life in science really teaches you is the vastness of our ignorance.

If you are a carrier of a particular set of genes, your probability of committing a violent crime goes up by eight hundred and eighty-two percent.

We don't really understand most of what's happening in the cosmos. Is there any afterlife? Who knows.