Yeah, I know he started his rap career around the time Juice came out. But with Me Against the World the subject matter in his music started to mature. When he went to prison, all the interviews while he was in showed someone who had also matured mentally. But when he got out it was like a regression. He fell right back into that persona, which was like the character he played in Juice.
Read the Vibe Interview from jail and watch his prison interview (Tupac in Jail, or 2pac Vs.). Then compare that to the bullshyt he was spewing in his Makaveli interviews where he's asked why he doesn't work with Biggie and he responds, "Yellow M&M's don't move with green M&M's. I mean, you don't put M&M's peanuts with M&M's plain. You hear me?