My stories often begin with a situation or character rather than an insight about the human condition. It's always been difficult for me to write from an abstract idea, no matter how interesting or compelling I feel the idea might be.

I usually have a general idea of where the story is going, but I try to avoid planning in too much detail. The best endings are those that emerge only after I've thought long and hard about the various ways the story might end. Then I choose the ending that seems surprising yet somehow inevitable.

Partnerships remain critical to nuTonomy's success, and our aim is to work with groups with whom we share strategic aims and core values. These are partners that are transparent, innovative, and are focused on putting autonomous fleets on the road.

Building cars is highly specialized, it's hard, and it's capital intensive.

The great thing about social media was how it gave a voice to voiceless people.

As part of our layered approach, we have expedited the deployment of new Advanced Imaging Technology (AIT) units to help detect concealed metallic and non-metallic threats on passengers. These machines are now in use at airports nationwide, and the vast majority of travelers say they prefer this technology to alternative screening measures.

I've learned several lessons over the years. First, never take yourself too seriously, or work is boring. Next, people make the difference. You can have great technology, but if it's not complemented by great people, it won't go anywhere. Finally, customers buy from people they like.

I try to take a weekly digital Sabbath, batch my emails so I deal with them a few times a day rather than constantly, and increasingly give myself permission to ignore unsolicited communiques. I try, too, to give others more slack. The respond-now culture is a two-way street. I'm trying to be more mindful of that.