"He's coming to talk tough to us. In Mexico there are a lot of economic and security problems, there is a lot of egoism, and he comes with a message of peace and hope that we need." - Tania Vasquez as Pope Francis kicks off his first visit to Mexico.
"He has called the president weak, a disappointment. He does not support, the way I do, building on the progress the president has made." - Hillary Clinton at a town hall in South Carolina about rival Bernie Sanders as the fight for black voters turned into a tug-of-war over President Barack Obama's legacy.
"I think we like to believe that our love and our understanding is protective, and that 'If anything were wrong with my kids, I would know.' But I didn't know, and it's very hard to live with that." - Sue Klebold, mother of Columbine High School shooter Dylan Klebold, who in an interview with ABC's "20/20" said she didn't know anything was wrong with her son before the 1999 attack.