事上无难事,只怕有心人用英语怎么说

这句话的原意是：事上无难事，只怕有心人，意思是说，如果没有有心人的干扰，事情是不会有难的，只有有心人的干扰才会让事情变得困难。

这句话的英文表达方式有很多种，可以是：

"Where there's a will, there's a way"
"Nothing is impossible if you put your mind to it"
"With determination, anything can be achieved"

例句如下：

I know that you want to start your own business, but don't let anyone discourage you. Where there's a will, there's a way.
I know that you're struggling with your studies, but don't give up. Nothing is impossible if you put your mind to it.
I know that you want to run a marathon, but don't let anyone tell you that you can't do it. With determination, anything can be achieved.