Cabbies in particular seem to like discussing the fate the Earth.

Copenhagen has done a remarkable job creating streets that are focused on bicycles and pedestrians.

I think there's a gigantic generation gap in terms of how people understand the Internet and how much they think technology is an important factor in social change.

Optimism is a political act. Those who benefit from the status quo are perfectly happy for us to think nothing is going to get any better. In fact, these days, cynicism is obedience.

Urban retrofitting: creating different sorts of spaces and uses out of places that are already there.

If mass media, social isolation in the suburbs, alienating workplaces and long car commutes create a bunker mentality, the Internet does the opposite.

By looking at climate change as a clean energy generation problem, we're setting ourselves up not to solve it.

It's not just enough to survive. We've got to make something better than what we've got.

The denser places get, the lower the amount of energy people use to get around it.

We have to craft new political realities, not only in places like India, Afghanistan, Kenya, Pakistan, but here at home as well. Another world is possible.

Saying the Tech Bloom is not commercially driven is like saying Mother Teresa had an interest in the poor.

From the moment of my birth, I lived with pain at the center of my life. My only purpose in life was to find a way to coexist with intense pain.

Education is acquisition of intellectual knowledge to be what we ought to be.

Everyone can afford to give away a smile.

Every father knows at once too much and too little about his own son.

As no darkness can be seen by anyone surrounded by light, so no trivialities can capture the attention of anyone who has his eyes on Christ.

When I was in high school in St. Louis my best friend was Marsha Mason. Marsha was a year ahead of me.

Be sure then to read no mean books. Shun the spawn of the press on the gossip of the hour. Do not read what you shall learn, without asking, in the street and the train.

The tired ox treads with a firmer step.

It is a test (a positive test, I do not assert that it is always valid negatively), that genuine poetry can communicate before it is understood.

To understand animal thinking you've got to get away from a language.