F4, F.IV, F04, F 4, F.4 or F-4 may refer to:
https://en.wikipedia.org/wiki/F4
Jet Fighter USAF Phantom F4 Plane
"We long to be here for a purpose, even though, despite much self-deception, none is evident."
F4 Phantom
Jet Fighter USAF Phantom F4 Plane