The author of financial best-seller "Rich Dad Poor Dad" has some unusual advice for millennials in his new book: Saving is for losers.

"You cannot follow your parents' rules of money," said Robert Kiyosaki, who this year published a fresh tome, Second Chance: For Your Money, Your Life and Our World. "The old rules were you go to school, you get a job, you work hard, you save money and you invest for the long term in the stock market."