The only thing I ever lost I couldn't find was time

50 cent

I'm not sayin I'm number one, uhh I'm sorry I lied,
I'm number one, two, three, four and five --- KRS One

Im not a businessman; Im a business...Man! - Jay Z

I must confess, my destiny's manifest - Lauryn Hill

I made a G today, but you made it in a sleezy way - Tupac

you overdid it homes, You in the danger zone, you shouldn't be alone - Biggie

You ain't gotta like me, you just mad
Cause I tell it how it is, and you tell it how it might be - Puffy

Life without knowledge, is death in disguise - Talib Kweli

Either you're slingin' crack rock or you got a wicked jump shot - Biggie

Spike Lee couldn't paint a better picture
You small change, I'm blowin out your brains gettin richer - Big Pun

Cause aint no such things as halfway crooks - Mobb Deep

Elvis was a hero to most, But he never meant shit to me you see - Chuck D

I could do this all night. Some famous, some not so much.
I always thought an interesting t shirt idea would be to have a famous 1 liner as the center of the t shirt. Alot of possibilities.