Brian O'Driscoll admits last year's Grand Slam heroics have left Ireland determined to retain their place at the summit of European rugby.
reland's success in completing only their second clean sweep has whetted their appetite for silverware as they prepare for the championship opener against Italy.
"The fact we won hasn't changed the dynamic. Hopefully it's going to be our time again," he said. "You get selfish after obtaining a goal. You get a taste for it. It doesn't mean your ambition is less, in fact it probably heightens it."
He added: "I enjoyed all the trappings that came with the Grand Slam - winning itself, the celebrations and the general feeling in the country.
"It was great and if we can go that again, why not? It's better than not doing it again. As Irish people we don't do middle ground. We're at the very top or down the bottom.
"We've experienced being very low after the 2007 World Cup and it's definitely a nicer feeling being at the top. We want to stay there for as long as we possibly can. We're owed nothing after winning the Six Nations last year so we have to go and earn it again and start from scratch."