翻译：我们一直认为，不努力将一事无成。(without)

We have always thought that you can't acchieve anything without effort.

We always believe that no achievement will be made without effort.

We always think that "no pains, no gains".

这里介绍的是一句正宗的英语成语，就是你句子的意思，不是就文字翻译的，既简洁又贴切而生动。

we always think,we'll not succeed without any effort.

We always believe that one can not succeed without hard-working,