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I guess I've been in mathematics for far too long, and I tend to use the phrase "Not all is lost" as the negative of "All is lost".

To me the phrase "All is not lost" suggests that nothing is lost. It doesn't send the message I'm trying to give which is that "at least one thing is not lost".

What's your interpretation of the two phrases?

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I have a similar question. How about "everything is not lost"? Is it the same as "nothing is lost" or "all is not lost"? –  Shen Jul 24 '11 at 7:09
As a mathematician, I would agree that "All is not lost" and its ilk can be ambiguous. But (outside of technical fields) who objects to ambiguous language? –  GEdgar Nov 23 '11 at 22:36

7 Answers 7

up vote 13 down vote accepted
  1. "All is not lost" does not suggest that nothing is lost. It is said to counter the statement or belief that everything is lost, despite appearances to the contrary. It expresses exactly the meaning you say you want to convey, i.e., "at least one thing is not lost."

  2. "Not all is lost" is simply another, more emphatic way of saying the other. It emphasizes the negative and is a stronger counter to any contrary assertions that have been made.

That's the meat of the matter; now to the seasoning: No. 1 can also seem more optimistic, and may be used to suggest that victory is in fact possible. Similarly, No. 2 may sometimes be used in a bitter, pessimistic way to point up how little is left. It may mean that everything of importance has been lost, but there may still exist a consolation prize, meager though it may be. "Our house burned to the ground, but at least the dog house remained untouched," one might say ruefully. "You see? Not all is lost."

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Certainly a more nuanced and precise answer. +1 –  VonC Dec 5 '10 at 3:59

I'm with Robusto on this; "All is not lost" is the idiom used specifically to counter "All is lost". "All is lost" -> The situation is hopeless, we're doomed, there is nothing that can save us. "All is not lost" -> The situation can be salvaged somehow, we can make it through this, there's still hope.

"Not all is lost" (if I ever heard it used) would be the counter to "I've lost everything! It's all gone, I can't find any of it!" "Not all is lost; look, here's your paddleball, and here's your chair."

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The usual sentence is "All is not lost", as in "there is still hope".

"Not all is lost" is either:

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Why do you say "definitively"? –  ShreevatsaR Dec 5 '10 at 3:26
@ShreevatsaR: because that's what happen when I answer at 3AM. I am a little prone to overemphasis. I have edited it out. –  VonC Dec 5 '10 at 3:57

Hint: For purposes here, lose the idiom. As an adjective, "all," is "being or representing the entire or total number, amount, or quantity: All the windows are open. Deal all the cards; Constituting, being, or representing the total extent or the whole: all Christendom.

"All aspirin are not alike" (old Excedrin commercial), wherein conveys that no 2 aspirin are alike. "Not all aspirin are alike," conveys the meaning that "among all aspirin, some may be alike but some are certainly not." Endless appeal to idiomatic usage and common parlance will never resolve this.

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"All aspirin are not alike" conveys that no two aspirin are alike only to logicians. If you want to convey that message to the general public, you should say "all aspirin are different". –  Peter Shor Nov 23 '11 at 18:56

I suppose the easiest way to specify your precise meaning would be to say either "Not everything is lost" or "Nothing is lost". But it lacks the poetry and simplicity of Milton's original.

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Speaking as a programmer, this is something that has bothered me for a great deal of time as well. "All x is not y" would suggest that not a single x can be considered y, but indeed more often than not the speaker actually intends to convey that although some x are y, not all of them are.

Popular usage of "all is not" can be considered a strangely persistent idiomatic mistake, and is at best archaic. I don't ever hear phrases like "all is not lost" or "everything is not what it seems" outside of kitschy fiction and bad screenwriting.

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All is not lost and Not all is lost are actually quite interchangeable. Meaning wise they are same, expression wise a little different.

When you say All is not lost your focus is on the totality of the subject matter. On the other hand, when you say Not all is lost you are focusing on the negativity, but still are hopeful.

However, All is not lost is more formal, you'll get the definition in popular dictionaries like Oxford Dictionary.

Also, if you Google both the terms in quotes, you'll see that "All is not lost" is used at least 3 times more often than "Not all is lost"

Hope this information will be helpful to someone.

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