Quinton "Rampage" Jackson (32-8 MMA, 7-2 UFC) believes Jon Jones (13-1 MMA, 7-1 UFC) isn't being honest about fighting. 



Jackson, a former UFC light heavyweight champ, doesn't hide the fact that he's in this for money.

But he said Jones isn't doing the same, and it's one of a few things that rub him the wrong way.



"He's talking a bunch of [expletive] like I fight for money," Jackson toldMMAjunkie.com (www.mmajunkie.com).



No surprise here, but the friction between the light heavyweight headliners has moved to the philosophical. The two meet Saturday at UFC 135, which takes place at Denver's Pepsi Center.



Firing back at Jackson in the midst of "Spygate" – the former champ recently accused the Jones camp of putting a spy in his Denver-based training facility – Jones tweeted that Jackson simply fought for money.



Jackson's prompt response: grow up.



"We all fight for money," he said. "I'm just more open about it than other fighters."



Of course, that openness has led many to question whether Jackson's heart isn't truly invested in fighting. After all, without passion for the sport, is he ultimately going to care about improving, much less fighting to his potential and leaving a legacy?



Jackson sees it another way. He said he's in the sport to capitalize as much as possible before he retires at age 35. But he flatly denies his motivations have waned.



"A lot of fans didn't understand when I said I want to move on and do other things after fighting," he said prior to his fight with Matt Hamill at UFC 130. "Honestly, fighting is a great job. The UFC's done so much for me, and it's been a great organization to be a part of.



"If Dana would pay me every month after I retire, than I (would) fight a little longer. It just don't work that way. I see a lot of pro wrestlers and football players and boxers that don't have anything.



"I have kids to look after, and I want to put some of my kids through college, and I know some of my kids I'm going to need lawyer fees for them."



Prior to "Spygate," Jones praised Jackson's performance against Hamill and said he didn't subscribe to the idea that the former champ is on the decline. But in an interview Sunday with USA Today, he's distanced himself from Jackson's views on prizefighting.



"Of course, I want to support my family," Jones said. "But 'Rampage' made it publicly clear, and very clear, that the only reason why he takes a fight is for that big paycheck at the end of the day. I don't really look at it that way any more. It's not really what it is for me."



Jackson said it's just semantics when you boil down the meaning of work.



"Everybody has their reasons, but it all goes down to money," he said. "That's why we [say] go to school (and) get a good education so you can get a good career, so you can make good money. This is my career. That's the way I see it. That's what keeps me grounded.



"It's a career. I don't bring my work home with me. I do it for money. I can't speak for other people, but I don't see why people put themselves through all the pain we go through as MMA fighters, and if you're not doing it for money – I know you can do it for honor and all that. Yeah, I do it for that, as well.



"But at the end of the day, honor is not going to put my kids through college. It's not going to feed my kids. And it's not going to buy me Lamborghinis."



Jackson nevertheless has attacked Jones' honor. Amid his accusations of spying, he asked where the honor had gone in fighting and questioned the character of the champ and those around him.



With two weeks until the fight, he made it clear his feelings haven't changed.



"[Expletive] no," Jackson said when asked whether he thought Jones is an honorable person. "He's a cocky little kid. He's a sheep, just like a lot of other people out there. He got the belt, and his head been up his ass ever since. Fame goes to different people different ways, and he's just a cocky little kid."



And Jackson, of course, plans on teaching Jones a lesson about the way things work.