Jaromir Jagr was philosophizing, as is his wont.

“I’m 41 and learning something every day,” the Bruins’ No. 68 said following Saturday’s practice in advance of Sunday’s Game 2 of the Eastern Conference semifinals against the Rangers. “The game is quicker than it ever was, and if I want to stay in the league I have to adjust.

“I can’t play the same as I did in 1990 in 2013. You could have the best car from 1990 but if you drive it today you would look stupid.”

One thing Jagr never has been is stupid — not as a young pup in Pittsburgh, not in Washington, not in his three-plus years in New York during which he was a transformative player in resurrecting the franchise, and not in the KHL, Philadelphia, Dallas or, now, Boston after being acquired from the Stars at the trade deadline.

“When I was younger I liked to drive cars and go fast,” he said, laughing. “Now I take a taxi. When I am in Czech, I have a driver.”

When that line was relayed to Henrik Lundqvist, the Rangers goaltender said, “What, does he think he is 75 years old?”

Jagr hasn’t scored a goal in eight playoff games. He has three assists. He had two shots and five attempts in 23:11 on Thursday. He scored two goals in 11 regular-season games for the Bruins after recording 14 goals in 34 games for Dallas.

“I’ve played better, that’s for sure,” Jagr said. “Of course I would like to help the team more than I am now. I hope I can score more, but that’s the way it is, and it’s not the first time and it won’t be the last time.

“It’s so much about confidence. It doesn’t matter how many goals you scored before, when everything goes well, it’s going to go better, but when everything goes wrong, you could be 25 and it feels like you should quit.”

Jagr came to the Rangers from the Capitals midway through the 2003-04 season. He carried the club to the playoffs in 2005-06 with a franchise-record 54 goal, 123-point season. When he left for the KHL following the 2007-08 season, he left behind a huge void.