"The question isn't at what age I want to retire, it's at what income."
-- George Foreman
Foreman's quip above is funny, but it's also very true -- both for wealthy people like him and for ordinary people. After all, even if you only have $500 in the bank, you could retire now, with extremely little income. And even if you're 65 with a million dollars, you could put off retiring in order to retire later with even more income.
Image source: Getty Images.
Source: Fool.com