He deserves not the sweet that will not taste the sour.
He who has never tastes what is bitter knows not what is sweet.
No sweet without some bitter.
Portuguese
Quem não sabe do mal, não sabe do bem.
Translation: Who doesn't know about bad, doesn't know about good.
Romanian
Cine n-a gustat amarul, nu știe ce e zaharul (dulcele).
Translation: Who did not taste the bitter, does not know what sweet means.
Russian
Не помучившись, не доживешь до счастливых дней.
Translation: If you don't suffer, you do not live to see happy days.
Spanish
Si quieres holgura, sufre amargura.
Translation: If you want looseness, suffer bitterness.
Sólo sabe de dulzura quien conoce la amargura.
Translation: Only knows about sweetness the one that knows about bitterness.