Tupac Shakur -- 'Thug Life Is Dead' Jailhouse Letter Up for Sale

Tupac Shakur's declared "Thug Life" was dead to him in an emotional letter that included a road map for his "homiez" to make it out of the hood -- and that letter is now up for sale.

Tupac's 5 page correspondence to a Death Row employee was written in 1995 while he was in jail for rape. The letter includes some deep thoughts about being ready to let someone else rep the thug life -- which he famously tatted on his torso.

He wrote, "U must play the game, not let the game play u. A regular Playa plays women, a Boss Playa plays life. A Boss Playa is a thinker, a leader, a builder, a moneymaker, a souljah, a teacher and most of all, a Man! "

Tupac also said, "I want all my homiez to know there is another level."