You mean every cloud has a silver lining?

I'm stumped at the moment; maybe: Pride comes before a fall, though I don't think that's quite what you mean.

No I think she means something else....

How about "You can't make an omelette without breaking some eggs."?

Or what is the relationship between the apples and the (bitter?) sorrel? That you can't have something good (apples) without also accepting something bad?

Yes, you're right, girly-girl!

Hat noch jemand eine Idee???

Was ist mit The brighter the light, the deeper the shadow ?
sagt ein bisschen mehr als nur alles Gute hat seinen Haken, also kommts auf den Kontext an, ob es passt.

you have to take the bad with the good. Not the same as "there is no silver lining without a cloud."

There are two that I can think of: "You can't make an omelette without breaking eggs", as already mentioned, and "You have to take the rough with the smooth", which is perhaps what Selkie was thinking of.

vielleicht ein bisschen weit weg: with every wish, there comes a curse

I remember my Ma once getting a piece of turf from Mike MacTavish from across the road, because my Dad had been drinking in Portree and apparently forgot to buy some turf for the oven. My Ma was real grateful, and Mike just said: "It's alright, bonny lass!", but later he was wanting some eggs, and my Ma only had two, but he demanded them nevertheless. That's when my Ma told me:
"Gregg, even a golden babygoat will have to shite!"

I think that fits quite well for what you're looking for.

By the way, I also like "There's no such thing as a free meal!"

Gregg, you are making these up, aren't you?

@tanja1: I can confirm "There's no such thing as a free meal!", but I am not sure that it fits what Lora is looking for.
The babygoat thing just sounds plain weird to me...

Shouldn't it be "there's no such thing as a free lunch"? That expression was coined or at least popularised by Milton Friedman.

http://www.google.de/search?hl=de&q="there's+no+such+thing+as+a+free+lunch"&meta=

Ach ja, und das trifft meiner Meinung nach nicht genau, was Lora sucht, sondern sagt eher es, dass nichts umsonst ist. Es gibt keine Geschenke ...

BE native, I was referring to the golden goat, not the free lunch. Gregg always comes up with highly amusing tales from Ochtermochty or whatever the tiny Scottish village is that he comes from, and things the residents thereof would say.

@tanja1: It's "Lauhbin", my dear. And no, I'm not making these up. I just like to relay to the world what people in wee Scottish villages tend to say. Whether you want to use these phrases then is totally up to you.

Gregg, hey, no offence. And please do keep them coming, genuine or made up, they're all priceless. Linguistic Four Yorkshiremen, if the metaphor isn't too mixed.
OT: is Laubhin the mythical place where "och aye the noo" originates? The phrase that all non-Scots come up with when pushed to say something Scottish and that nobody in Scotland ever seems to say?

@tanja1: As you said "Gregg, you are making THESE up, aren't you? " I assumed you were referring to both of Gregg's ...uh... suggestions. Sorry, I shall say no more.

@tanja1: Well, I'm glad my linguistic heritage amuses you so. And sorry, I'm not familiar with the phrase you mentioned. Lauhbin's not a mythical place really, it's just really, really tiny!

How about "No rose without a thorn" ?

To take the bitter with the sweet.

@ Lora

I guess argus comes the closest to what you are looking for. Its like every basket has a bad apple, and you don't know which is it. So have to buy the entire basket!

Every rose has it's thorn?