the sooner (,) the better
I have a question about "the ... the ... " type of sentences: should we put a comma in between the two parts?
I would write a comma, but a colleague of mine said you should not do that. Indeed, I have notice that "the sooner the better" is not always written with comma, but other longer sentences contain a comma:
The longer you keep this wine, the better it tastes
The better your sentence, the easier it is to punctuate.
Can you clarify this point for me? Thanks
Re: the sooner (,) the better
Longer sentences need commas because each of them has its own subject-predicate set, that's why they should be separated. If "the sooner the better" is used indpendently, to me as a non-native speaker it looks better without any commas :-) I'm not a grammarian, so please don't consider it as a rule :-)
Re: the sooner (,) the better
The general rule of thumb is to use a comma to set off a phrase or clause that expresses a contrast. For example,
[1] The sooner we get her to the hospital, the better off she'll be.
[2] The sooner, the better.
Note, if the phrase or clause is short and part of the flow of the sentence, then a comma is often not used:
[3] The sooner the better.