The Argentine, who arrived at Camp Nou from Liverpool, believes the side's players have a different mentality to those from other teams.
“One thing I have discovered is that in football, the [players from the] biggest sides which have made history are the most humble,” he told reporters.
Mascherano, who arrived at the Blaugrana from Anfield in 2010, also believes his own attitude to the game has improved since relocating to Spain.
"Since I came to Barcelona I've always had the mentality of trying to give the best, offer the team [my best] and often leave the ego aside.”
The 24 million euro signing has enjoyed a successful spell at Barcelona, winning both the Champions League and La Liga.