Mac Miller kicked off Valentine's Day with a truly loving tweet:

Mac's love for Bill Murray is something he's hinted at during his career. He called himself the "Young Bill Murray" on Statik Selektah's 2013 single "21 & Over," and name-dropped the comedian in his 2012 BET Hip Hop Awards cypher.

It makes some sense, then, that Murray seemed to serve as inspiration for Mac's new mixtape, Faces, which dropped on Sunday and includes dialogue from two of Murray's movies on two separate songs.

Those aren't the vocal samples on the project. After some digging, we found four other notable ones used -- taken both from movies and interviews with famous authors.

Song: "Grand Finale"

Sampled Line: "The hallucinations have stopped, finally, thank God, but uh, my adrenaline reserves are burning out and I'm staring straight into the face of a total psychotic freakout."

What It's From: "Where The Buffalo Roam" (1980)

Song: "It Just Doesn't Matter"

Sampled Line: "They've got the best equipment that money can buy. Hell, every team they're sending over here has their own personal masseuse, not masseur, masseuse. But it doesn't matter."

What It's From: "Meatballs" (1979)

Song: "Here We Go"

Sampled Line: "Be without fear in the face of your enemies. Be brave and upright, that God may love thee. Speak the truth , even if it leads to your death. Safeguard the helpless and do no wrong; this is your oath."

What It's From: "Kingdom of Heaven" (2005)

Song: "Polo Jeans"

Sampled Line: Kid #1: "Damn you, rabbit! You smell like f--kin' piss!"

Kid #2: "You can kiss my ass!"

Kid #1: "I hate the goddamn rabbit"

Kid #2: "F--kin' rabbit"

What It's From: "Gummo" (1997)

Song: "Wedding"

Sampled Lyric: "Okay, you work a God damn lousy job, you know. You come home at night, you're tired. What are you going to do? Go to a movie? Turn on your radio? Hell no. You're going to get a bottle of whiskey and drink it. And go down to a bar and maybe get in a fist fight. And meet some bitch, something's going on. Then you'll go to work the next day, and do your simple little things, right?"

What It's From: An interview with author Charles Bukowski

Song: "Funeral"

Sampled Line: "I know what happens to you, me and everyone else when they supposedly die. It's this passage around the great loop."

What It's From: An interview with author Hunter S. Thompson, during a 1997 appearance on with "Charlie Rose"