difference between "don't ever" and "never"?

[Sitifan]

1. Don't ever stop chewing.
2. Never stop chewing.

What's the difference in meaning between "don't ever" and "never"?
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Thank you very much for your reply.

[Yankee]

Hi Sitifan

I don't see any difference in meaning in those sentences.

(They strike me as very odd examples. Was there any particular reason you chose "chewing"?)
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[Sitifan]

No, there was no particular reason. Please see the link http://www.2tough2chew.blogspot.com/
1. He never goes to school late.
2. He doesn't ever go to school late.
#1 is correct. Is #2 also natural English?
I seldom, if ever, use "don't/doesn't/didn't ever." Is there any stylistic difference between "never" and "not ever"?
_________________
Thank you very much for your reply.

[Yankee]

Hi Sitifan