好事多磨用英语怎么说

以下三种翻译都可以，可根据具体语境选择合适的句子使用。
好事多磨:
1.the road to happiness is full of hardships
2.The course of true love nerver runs smooth
3.A good gain takes long pain

Fine affairs do not come easy!

好事多磨------The good matter whets much