Ten years have passed since a perfect blue sky morning turned into the blackest of nights. Since then we've lived in sunshine and in shadow, and although we can never unsee what happened here, we can also see that children who lost their parents have grown into young adults, grandchildren have been born and good works and public service have taken root to honor those we loved and lost.

Trees will improve property values, take pollutants out of the air, help with water runoff.

One's a dog-eat-dog world, and the other one's just the opposite.

Life is too short to spend your time avoiding failure.

In 1975, Congress passed a law requiring fuel efficiency standards to double over 10 years, with incremental targets that auto manufacturers were required to meet. That was the responsible approach, and it worked. But since 1985, we've done nothing - even as technology has moved at light speed.

This society cannot go forward, the way we have been going forward, where the gap between the rich and the poor keeps growing. It's not politically viable; it's not morally right; it's just not going to happen.

I'm worried about the world because there's chaos in the Middle East, and I think the Iranian deal [to lift sanctions] is going to continue the Shia-Sunni battles, the Persian-Arab battles.