The critics don't build great cities
Its important not to focus so much on the statistics, but [on people's] perceptions.
I have flown ValuJet. ValuJet is a safe airline, as is our entire aviation system.
We have to get out of the mind-set of saying, "No matter how hard we try, we will have accidents," and into "We will not have accidents."
Many trees planted around a home reduce the need for air conditioning.
I do not underestimate the difficulty of the challenge that global climate change presents to us. It will take a significant effort and the best talent and technology we have to solve the problem.
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