Michael Fassbender admits he gets "seduced" by money.
The 'Shame' actor has to "keep an eye" on himself to ensure he doesn't get greedy or obsessing about himself and his own brilliance.
He said: "There's no point thinking, 'Well my life's certainly worked out, I've got all the answers.'
"It would be wrong for me to say that I don't get seduced by certain things. That things don't become tempting. Like, you know, money. How much money does one need? Let's start with that, that's a pretty good one.
"So that, you know. Greed, things like that. Vanity, believing the hype. You have to keep an eye on those things."
Michael believes the best way to stay grounded is to keep a "simple" lifestyle and always associate with the same group of friends.
He added to Esquire magazine: "There's another side of me that's very simple. I keep my lifestyle pretty simple and my possessions are pretty simple. I don't have a very complicated bank balance, but that's not the only thing.
"How does anyone do it? You make sure you've got a good network of friends, I like to hang around with good people and work with good people."