Colleagues and friends of the CBS correspondent Mike Wallace, who died on Saturday, have posted their memories of him
Lady Nancy Reagan
Former first lady
"My heart is broken today over the death of my dear friend Mike Wallace. My parents introduced me to Mike more than 75 years ago and we've been fast friends ever since. Mike was an old-school journalist and one of the most astute people I've ever met. The news business will be a different place now, and our lives will be forever changed for having known him."
Mitt Romney
Republican presidential candidate
"My experience with Mike Wallace – integrity, charm, character. A great one goes home."
Newt Gingrich
Republican presidential candidate and former Speaker of the House
"Mike was a giant in news reporting and analysis. His investigative reporting was legendary and his participation in 60 Minutes helped create a lasting institution. Mike Wallace's life created a legacy young reporters will study for years to come. The Wallace family is in our prayers this Easter Sunday."
Morley Safer
60 Minutes correspondent
"Wallace took to heart the old reporter's pledge to comfort the afflicted and afflict the comfortable. He characterized himself as 'nosy and insistent'."
Anderson Cooper
CNN correspondent
"A true original. What an amazing career and remarkable man."
Ben Sherwood
President, ABC News
"Every Sunday night, America tuned in to see what questions he would ask and who would be exposed to his hard-charging quest for the truth. Mike's tough questioning inspired generations of journalists."
Jeff Fager
CBS News chairman and executive producer of 60 Minutes
"Without him and his iconic style, there probably wouldn't be a 60 Minutes. There simply hasn't been another broadcast journalist with that much talent. It almost didn't matter what stories he was covering, you just wanted to hear what he would ask next. Around CBS he was the same infectious, funny and ferocious person as he was on TV. We loved him and we will miss him very much."
Leslie Moonves
President and CEO, CBS Corp
"His extraordinary contribution as a broadcaster is immeasurable and he has been a force within the television industry throughout its existence. His loss will be felt by all of us at CBS."
Bob Schieffer
Host, Face the Nation
"Mike was a great friend and a mentor to me. He even gave me a compliment once, and he was one of the real pioneers in television journalism."
Diane Sawyer
ABC News anchor and former 60 Minutes correspondent
"Mike's energy and nerve paced everyone at 60 Minutes. His was the defining spirit of the show. He bounded through the halls with joy at the prospect of the new, the true, the unexpected."
Larry King
Former CNN host
"Mike Wallace was a dear and wonderful friend. Not just a great broadcaster, but a great guy. We will never see his like again."