"It's quite a big deal. It brings a new kind of burst of energy into the conference right at the beginning on something very important." — Jennifer Morgan, global climate director for the World Resources Institute, as government and business leaders pledged tens of billions of dollars for research and development on clean energy technology to fight global warming.
"He was just a standup guy. He would take a bullet for you. He was the most sincere person I'd ever met." — Amburh Butler, a family friend of Ke'Arre Stewart, slain at a Colorado Planned Parenthood clinic last week.
"I have great doubts about Donald Trump's ability to be commander in chief. If you listen to him talk, it's kind of scary to be honest with you, because he's not a serious candidate." — Jeb Bush on CBS' "Face the Nation" about his Republican presidential rival.