Belief is accepting something without evidence. If you have evidence, belief isn't necessary, because you know it.
Saying you won't accept anything without evidence is saying you don't hold any beliefs at all. But nobody is really like that. Atheists believe all kinds of things.
The part that trips people up is when something is unknown but knowable. That is where someone can have belief without having faith.
Faith is for stuff that is not and never can be empirically known.