Nuclear weapons were invented out of fear. The United States was afraid that Hitler was developing an atomic weapon, and they had to get one to deter him from ever using it. When the U.S. Manhattan Project that built the bomb began, no-one ever thought we would use a weapon like this; it was considered beyond the pale—a weapon that would indiscriminately kill hundreds of thousands of innocent men, women, and children.

Despite huge and on-going technological advances in electronic transactions technologies, it has remained surprisingly durable, even if its major uses seem to be buried in the world underground and illegal economy.

Conflict resilience is the capacity to sit with the discomfort of disagreement in the first place. It's a leadership quality that integrates various skills, most notably genuine, curious listening and effective assertion—the ability to articulate one's experience authentically in a way that isn't avoidant but increases the likelihood of being heard.

We embrace imposter syndrome because it gives us a chance to get off the hook. If you're an imposter it feels like the kind, mature thing to do is to not ship the work and to say, 'no, this isn't for me to do…' In fact, imposter syndrome is a symptom that we are leading because leaders are doing something that's never been done before and so of course you will feel like an imposter, because you are one!

Seeing the Earth framed through the shuttle's small windows versus seeing it from outside was like the difference between looking at fish in an aquarium versus scuba diving on the Great Barrier Reef… I was really out there, floating in it, swimming in it. I felt like a real spaceman…