“Out of the people that ever were, almost all of them are dead. There are way more dead people, and you’re all gonna die and then you’re gonna be dead for way longer than you’re alive. Like that’s mostly what you’re ever gonna be. You’re just dead people that didn’t die yet.”

Variant: you are not dead, but you are not alive.
Source: Wintergirls

Ron English's Fauxlosophy (2016)

Source: Narcissus in Chains

Source: The Crow

Source: Jack Faust (1997), Chapter 14, “Dreadnought” (pp. 248-249)

Excerpt from The Murder of Fred Hampton https://www.youtube.com/watch?v=_7F8RfnDhkA (1971).
Context: If you ever think about me, and if you think about me niggers, and if you ain’t gonna do no revolutionary act, forget about me. I don’t want myself on your mind, if you’re not gonna work for the people. Like we always said, if you’re asked to make a commitment at the age of twenty and you say I don’t want to make that commitment only because of the simple reason that I’m too young to die, I wanna live a little bit longer—what you did is, you’re dead already.

Source: The Way of Shadows (2008), Chapter 12 (p. 92)

Variant: You’re not dead, but you’re not alive, either. You’re a wintergirl, Lia-Lia, caught in between the worlds. You’re a ghost with a beating heart. Soon you’ll cross the border and be with me. I’m so stoked. I miss you wicked.
Source: Wintergirls

Source: GQ Roundtable (2014)
Ref: en.wikiquote.org - Chadwick Boseman / Quotes / GQ Roundtable (2014)