I like to have met someone in real life before being their Facebook friend.

Social networks are these intricate things of beauty, and they're so elaborate and so complex and so ubiquitous that one has to ask what purpose they serve.

We will create life from inanimate compounds, and we will find life in space. But the life that should more immediately interest us lies between these extremes, in the middle range we all inhabit between our genes and our stars.

Everyday interactions we have with other people are definitely contagious, in terms of happiness.

We cannot understand our humanity just by studying individuals.

It used to be thought that our genes were historically immutable and that it was not possible to imagine a conversation between culture and genetics.

Social media and the Internet haven't changed our capacity for social interaction any more than the Internet has changed our ability to be in love or our basic propensity to violence, because those are such fundamental human attributes.