When I think about, say, 1995, or whever the last moment was before most of us were on the internet and had mobile phones, it seems like a hundred years ago. ... Time passed in fairly large units, or at least not in milliseconds and constant updates. A few hours wasn't such a long time to go between moments of contact with your work, your people or your trivia.

The positive emotions that arise in...unpromising circumstances demonstrate that social ties and meaningful work are deeply desired, readily improvised, and intensely rewarding. The very structure of our economy and society prevent these goals from being achieved.

A contrarian at heart, I am often guided by what I disagree with and don't want.

To hope is to give yourself to the future - and that commitment to the future is what makes the present inhabitable.

As I started to pursue the subject more deeply I realized that walking was this wonderful meandering path through everything I was already interested in - gender politics, public space and urban life, demonstrations and parades and marches. The relationship between walking and thinking and between the mind and the body.

Perhaps walking is best imagined as an 'indicator species,' to use an ecologist's term. An indicator species signifies the health of an ecosystem, and its endangerment or diminishment can be an early warning sign of systemic trouble. Walking is an indicator species for various kinds of freedom and pleasures: free time, free and alluring space, and unhindered bodies.

Walking articulates both physical and mental freedom.