NCIS: Los Angeles, Season 1

Sam:
Operators are made, they're not born, G. Skills can be taught.

[...]

Sam:
Teachers learn to be teachers, cops learn to be cops.

Callen:
Mm-hmm. And somebody taught LeBron how to dunk from the free-throw line.

Sam:
SEALs learn to be SEALs, G.

Callen:
Oh, that's right. You couldn't swim when you enlisted, could you? How long did they let you wear the floaties? Look, I will take a lazy natural operator over an all-night studier any day of the week.

Sam:
[sarcastic] It's too late, I already did it.

Callen:
Mm-hm.

Hetty:
Nature versus nurture, quite the conundrum.

Callen:
You cannot use the word "conundrum" before 9:30, Hetty.

Hetty:
9:31, which means, Mr. Callen, you're late.