Forrest Gump: I may not be a smart man, but I know what love is.
Drill Sergeant: Why did you put that gun together so fast, Private?
Forrest Gump: Because you told me to, Drill Sergeant!
Forrest Gump: Bit me directly in the but-tocks. They said it was a million dollar wound, but the Army must keep that money, 'cause I still ain't seen a nickel of that million dollars.
Lt. Dan: Gump, Have you found Jesus?
Forrest Gump: I didn't know I was suppose to be looking for him, sir.
Jenny: Run, Forrest, run!
Bubba: The name's Benjamin Buford Blue, people call me Bubba.
Forrest: My name's Forrest Gump, people call me Forrest Gump.
Doctor: His legs are strong, Miss Gump. As strong as I've ever seen. But, his back is as crooked as a politician.
Forrest Gump: Momma always said, life was like a box of chocolates. You never know what you're gonna get.
Mrs Blue: Are you crazy? Or just plain stupid?
Forrest Gump: Stupid is as stupid does, ma'm.
Mrs Blue: I guessed.
Forrest Gump: What are you doing here, Lieutenant Dan?
Lieutenant Dan: I thought I'd try out my sea legs.
Forrest Gump: But you ain't got no legs, Lieutenant Dan.
Forrest: A promise is a promise, Lieutenant Dan.
Principal: Boy, your momma sure does care about your schooling, son. Mm mm mm.
Answer: It's not specified in the film, but in the sequel book "Gump & Co" the author mentions that Jenny dies from Hepatitis C as a former drug addict in the early 70s. Hepatitis C was an unknown disease until 1989.