Harm: Well, I thought it was pretty funny when you ducked under the table.
Mac: I'm a Marine, Harm. Marines don't duck.
Harm: What do Marines do?
Mac: They take cover, but they never duck.

Harm: Mac and I have an announcement to make... We're getting married.
P.O. Jennifer Coates: Congratulations!
Major General Gordon 'Biff' Cresswell: Outstanding! I knew you'd come around to the... more

Harm: [to Mac] Tell you what. Five years from this moment if neither us are in a relationship, we go have ourselves a kid.
Major Sarah 'Mac' Mackenzie: You and me? Have a baby together?
Harm: Yeah,... more

Season 9: A Tangled Webb Part 2
Mac in the tub: I knew I should've gotten my own room.
Harm gazes at her.
Mac: What?
Harm I forgot how beautiful you are
Later in the bedroom:
Mac: You resign... more

You resigned your commission, fly 5,000 miles, damn near get killed, well riddle me this flyboy, why?" Mac

"I think you know why." Harm
A Tangled Webb Pt 2.

Meg: Why do I always attract nerds?
Harm: Maybe it's the uniform.

Lt. Cmdr. Harmon 'Harm' Rabb, Jr.: You know when the Admiral first told me he was partnering me with a Marine major I had these visions of a tattooed, jarhead, challenging me to arm wrestle at... more

LCDR Rabb.: You work with the guy, Mac, you wouldn't go topless in front of me would you?
Lt. Col. Sarah 'Mac' MacKenzie: [pause] Is that a request?
LCDR Rabb.: [pause] You know they wrote... more

Cmdr. Harmon 'Harm' Rabb, Jr.: [after driving on the wrong side of the road, Harm parrallel parks on first try] . My stepfather had a cottage in the Bajamas. That's where I learned how to... more

Cmdr. Sturgis Turner: [after Harm gets a phone call] Job offer?
Harmon 'Harm' Rabb Jr.: C.I.A. They want to see me tommorrow at 0800.
Cmdr. Sturgis Turner: What did you *do*, buddy?