“Independence Day—celebrating the country by blowing up a small part of it”

The Simpson, an American animated sitcom, aired an episode on May 19, 1996 where Homer Simpson bought fireworks. The Valu-Mart clerk said:
 
“The M-320: Celebrate the independence of your nation by blowing up a small part of it.”
 
The one-line saying has been popular every July 4th.
 
   
Wikipedia: The Simpsons
The Simpsons is an American animated sitcom created by Matt Groening for the Fox Broadcasting Company. The series is a satirical depiction of a working class lifestyle epitomized by the Simpson family, which consists of Homer, Marge, Bart, Lisa, and Maggie. The show is set in the fictional town of Springfield and parodies American culture, society, television, and many aspects of the human condition.
 
Simpsons Wiki
“Summer of 4 Ft. 2” is the twenty-fifth episode of Season 7. It originally aired on May 19, 1996. The episode was written by Dan Greaney and directed by Mark Kirkland. Christina Ricci guest starred as Erin.
Quotes
Valu-Mart Clerk: “The M-320: Celebrate the independence of your nation by blowing up a small part of it.”
     
Google Groups: rec.arts.tv.mst3k.misc
SOMEBODY TALK TO ME!!!!!
Evan Talbott
11/26/96
(...)
Celebrate the independence of your nation by blowing up a small part of it.-The Simpsons
 
Google Groups: alt.tv.simpsons
Since no one else has said it…
Mike Reed
7/4/01
Happy 4th everybody! Celebrate the independence of your nation by blowing up a small pot of M320.
 
Google Groups: alt.tv.simpsons
Celebrate the independence of your country by blowing up a small part of it.
Joe King
3/22/03
This war reminds me of that line…only we are blowing up large parts of their country.
 
Twitter
The American Ronin
‏@AmericanRonin
Happy Independence Day! Celebrate the birth of your nation by blowing up a small part of it.
9:59 PM - 3 Jul 2008
 
Twitter
jjhare
‏@jjhare1
Ah independence day.  what better way to celebrate your love of country than by blowing up a small part of it
2:11 PM - 20 Jun 2009
 
Twitter
Noah Alan Foster
‏@lilbearfoster
Happy Independence Day everyone! Remember to celebrate your country’s independence by blowing up a small part of it!
10:51 AM - 4 Jul 2015