Gisele Bundchen: 'I'm not afraid of hard work'

Gisele Bundchen has said that "hard work" is behind her successful career.

The supermodel, who will reportedly become a billionaire by 2012, revealed that she has always approached her professional life with the willingness to go the extra mile in order to get ahead, unlike her siblings.

"Yeah, well, like I tell my five sisters, who don't work at it very hard at all, whatever you put in, you get out," Bundchen explained in the December issue of Vogue.

"I'm not afraid of working hard at anything, whatever it is. I just always want to be the best that I can."

Bundchen went on to say that she has tried to instill her values into Benjamin, her 22-month-old son with Tom Brady, including discipline in regards to diet and nutrition.

"My children, they are like white canvases. When Benjamin eats broccoli, he thinks it's dessert!" she said.

Bundchen has previously revealed that her life has changed since becoming a mother, as she can no longer travel as much as she might like.