What are 2 external and 2 internal conflicts in Of Mice and MenI need this to help my essay

John Steinbeck's novella Of Mice and Men's
very title hints at the struggles to come in the narrative.  Taken from
Robert Burns's poem, "To A Mouse" which ends with the
line

The best
laid scemes o' Mice and Men

Gang aft angley [often go
awry]

Here are conflicts that
occur in the narrative of Steinbeck's short work:

EXTERNAL
CONFLICTS

1.  Candy is in conflict with Carlson who wants
to shoot the swamper's  dog because the dog "stinks" and is too old to be useful.  After
looking "a long time at Slim to try to find some reversal," Candy "softly and
hopelessly" tells Carlson to take the dog, lying back on his bunk and staring at the
ceiling. (Chapter 2)

2.  Curley creates a conflict with
Lenny and George by being confrontation when he enters the bunkhouse looking for his
wife.  Later, Curley comes in with Slim, who tells him to "look after your own ---wife."
Carlson tells Curley to stop letting his wife hang around the bunkhouse.  When Curley
tells him to stay "outta this les' you wanta step outside," Carlson calls Curley "yella"
and threatens him physically.  Candy joins in with the insults and Lennie laughs.  As
Lennie retreats, Curley hits Lennie with a left, and then smashes his nose with a right
punch.  Still, Lennie does not defend himself because he is afraid.  However, when
George orders him, "Get 'im, Lennie," the big man grabs Curley's fist, crushing it.
(Chapter 3)

INTERNAL
CONFLICTS

1. George has conflicting feelings about Lennie. 
While he has promised Lennie's aunt to look after Lennie, George has encountered
problems as Lennie gets them into trouble and they lose jobs.  He complains that he
could have an easier life without Lennie:

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...if I was alone I could live so easy.  I could
go get a job an' work, an' no trouble.  No mess at all, and the end of the month come I
could take my fifty bucks and go into town and get whatever I
want....

However, after
George has said this, his

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anger left him suddenly.  He looked across the
fire at Lennie's anguished face, and then he looked ashamedly at the flames. (Chapter
1)

2. Crooks the stable
worker has been alienated by the others because he is black.  When Lennie comes into the
barn Crooks is cruel to him in retaliation against the others, taunting Lennie about
George's not returning from town.  At first his face "lighted with pleasure in his
torture," but when he realizes that Lennie is becoming angry, he relents and says "I
didn't mean to scare you."  Then, when Candy arrives "It was difficult for Crooks to
conceal his pleasure with anger."  Crooks wants to be cruel because he has been treated
cruelly, but his is so elated to have company that he cannot be mean. (Chapter
4)