...before we meet again.
Live long and PROSPER.
The Big Bang Theory Season 3, Episode 13
Live long and PROSPER, buddy.
The Big Bang Theory Season 9, Episode 17
Live long and PROSPER.
Live long and PROSPER.
The Big Bang Theory Season 10, Episode 10
AUTOMATED VOICE: Live long and PROSPER.
Live long and PROSPER.
The Big Bang Theory Season 10, Episode 10
"To Sheldon. Live long and PROSPER.
The Big Bang Theory Season 2, Episode 11