translation in japanese

Hello!
My friend asked me if I could translate a sentence for her in Japanese but I'm a absolute beginner and I can't do it... So could someone tell me what "Those who do not understand true pain can never understand true peace" means in Japanese? That would be very nice :)

真の平和は、痛み(or犠牲)を伴うもの(である)

or

痛み(or犠牲)無き真の平和など有り得ない(pr有り得ぬ)


Is this anime "Naruto" fansub words?
if so search and watch raw(original japanese sound) movie files.
http://24.media.tumblr.com/tumblr_mdnhomNn7p1rf2j93o1_500.jpg

The sentences suggested by 10-10 is more like "There can be no true peace without true pain/sacrifices" or "True peace is always accompanied by pain/sacrifice." Is this what you want to say? I know nothing about Naruto ...

If I go from your English sentence, it would be:
Hontou no itami wo shiranai mono wa, shin no heiwa mo shiranai.
本当の痛みを知らないものは、真の平和も知らない。
(Those who don't know true pain do not know true peace either).