How to interpret this comma?


> ですから、 **一回限りの人生、かけがえのない自己** を大切にしようではありませんか。
>
> So, shall we value this **irreplaceable self in this life that we have but
> once**? (example sentence from _A Dictionary of Intermediate Japanese
> Grammar_ )

How did the translator make the bolded connection (に、には)? Can 読点 work here to
list [predicate]人生 and [predicate]自己? That is, "shall we value this one life
that we have but once **and** ourselves, who are irreplaceable?

What is the grammar behind this? Assuming this structure can't mean "and", how
would you best rephrase it so that it does?




In this sentence, I think the author suggests valuing one important thing,
life. Not two things (life and self) separately.

So I would say this 読点 (comma) servers as an
[appositive](http://en.wikipedia.org/wiki/Apposition) marker. That is to say,
一回限りの人生 and かけがえのない自己 are the same idea described in two different ways.

To translate this literally, you can use comma as well in English:

> Let's value the life that is unrepeatable, the self that is irreplaceable.

The example translation in your textbook looks like a free translation, but at
least they are treating them as _one_ concept.

