“I'm not saying I'm 40. I'm 30-10. I don't feel 40. I don't know what it means. I just know that all of a sudden it's something that's in print next to my name. AND NOW SHE'S 40. It almost feels like some sort of badge of honor in a weird way.”

Said to Honey magazine, as claimed in Aaliyah: More Than a Woman, p. 178.
Attributed

http://sports.espn.go.com/espn/print?id=2083509&type=story
On boxing

A woman of extremes (2001)

Me and Julio Down by the Schoolyard
Song lyrics, Paul Simon (1972)
Context: I'm on my way, I don't know where I'm goin',
I'm on my way, I'm takin' my time, but I don't know where.
Goodbye to Rosie, the Queen of Corona
See you, me and Julio down by the schoolyard.

Source: Flawless

Renew America rally in Orem, Utah, March 8, 2000. http://renewamerica.us/archives/speeches/00_03_08utah.htm.
2000

Song I Just Don’t Know What To Do With Myself

Variant: I want to do something splendid... something heroic or wonderful that won't be forgotten after I'm dead. I don't know what, but I'm on the watch for it and mean to astonish you all someday.
Source: Little Women

Incidentals (1904)
Variant: I don't know where I'm going, but I'm on my way.
Source: Breathing Tokens