"Maybe, maybe," Silva said. "We're always close to stopping. We're always close to calling it quits. I don't know. I have a great, great chance for stopping the fight[ing]."
Silva, 38, loves to play with the media, so nothing he said in the interview should be taken too seriously.
When fight fans watch his facial expressions during his talk with MMA Fighting reporter Ariel Helwani, it's clear to see that Silva is just having fun while being a joke-ster.
"I'm going to answer this like Ronaldo did once -- of course I'm going to go back and play and I'm very happy and of course I'm coming back," Silva said while cracking a smile and pointing toward UFC president Dana White while the retirement question was being asked recently.
Since Silva seems to give a different answer in every interview he does, it's impossible to tell when he's being serious and when he's just taking the media for a ride.
He told Helwani that he's always close to calling it quits, yet he said at the UFC 168 pre-fight press conference that he's going to "go back and play" and "of course he's coming back."
"After the last fight, after the dust settled I was sitting thinking alone and thinking maybe I should stop. Maybe this is it," Silva said. "But I got on the phone with my son and my son said, 'Hey dad, do what you want to do, do what makes you happy,' and that's what I'm doing."
If Silva beats Weidman to become UFC middleweight champ again, he could join just a select group of fighters to leave the sport on top.
Recently, UFC welterweight champ Georges St-Pierre left the sport as champ. Silva says everyone is different and retiring as champion isn't all that appealing for him.
"Everyone has to make their own decisions in the end. He made his decision, what was better for him," Silva said of St-Pierre. "That's what is going to be better for him."
Silva fights Weidman in the main event of UFC 168, on Dec. 28 in Las Vegas, Nev.