Joseph Katz and Al Spiegal each celebrated their 100th birthdays in Lauderhill on Saturday, They have also been friends for 91 years.
Katz and Spiegal were born in 1912 and grew up together in Brooklyn, New York before ending up in South Florida.
Katz alone has 12 grandchildren and 10 great grandchildren.
"When the good Lord gives you a body, use it, don't abuse it, and you'll live to 100. That's what I can tell you," said Katz. "It's a good life in this country. We've never had it so good and we can have it even better."
Spiegal's perspective is a little different. "I feel surprised that I'm 100," he said.
Relatives flew in from across the Northeast to celebrate the pairs' birthday.
Friends and family say they are each men of principle.
Katz' son, Martin, also offered another secret to his father's long life. "He lives by himself, he gets up, he makes his breakfast, makes his lunch, makes his dinner, it's the desire to live. If you put him in a nursing home, that would be the end of my pop."