Their rallying cry is derived from a shared past, a history of overcoming skepticism about their abilities.
Rob Burnett was considered a liability after his knee surgery. Tony Siragusa was believed to be overweight and one-dimensional. Michael McCrary was pegged as too small to play end. And Sam Adams was labeled an underachiever.
Together, these Ravens turned away the doubts and became the NFL's most fearsome front four.
On the field, they're brothers in arms. Off it, they're brothers squabbling.
Inside the defensive line meeting room, the four Ravens love to bash each other as much as their opponents.
Like clockwork, Burnett takes his seat up front and whispers back to McCrary, "Did you hear what Goose said about you?"
McCrary calls Siragusa dumb. Siragusa yells at Burnett for starting trouble again. And everyone eventually gangs up on Adams for being so moody.
They sit with their feet on the tables, throw rolled-up paper balls across the room and talk over each other constantly.
They argue about their defensive assignments, their physiques and whether McCrary really believes he created the first satellite dish out of a garbage can lid and aluminum foil.
"It's Romper Room 2001," Burnett said. "We definitely fight for each other - there's no question about that. But we fight with each other the rest of the time."
When they snap on the helmets on Sundays, the bickering stops and these differing personalities mold into one of the best defensive fronts in the game.
They collapse on running backs like a 1,200-pound wall and they attack quarterbacks as if they were happy meals. No running back has cracked 100 yards against them, and every quarterback in the league has winced at the replay of Siragusa body-slamming the Oakland Raiders' Rich Gannon in last season's AFC championship game.
Of course, after they beat their chests, they fight over goodie bags. The next day, a lineman gets to choose a bag filled with different prizes for every sack or tackle for a loss.
"I think their success has a lot to do with the maturity of the immaturity," defensive assistant Mike Smith said. "We're mature enough to know when it's time to go to work, but we sure like to have a good time."
It's a blend of different personalities and playing styles.
Siragusa clogs gaps, while the other massive tackle, Adams, penetrates them. On one end, Burnett bursts into the backfield with power while on the other, McCrary gets there with an untiring motor.