Belief is good but why not upgrade to faith? Sitting around and believing hard won't mean anything unless you believe enough to get up and do something about it.
I don't mean to pick on you, but you need to keep yourself in context if you hope to make sense.
Firstly with your interpretations of belief and faith and what is required to attain and express them are your own and have not been explained for your statement to even attempt to be grasped by others as more than just "speaking to hear yourself do so".
Secondly, are you assuming those here who believe in what they are speaking are doing nothing towards their cause? You would have to for that part to make sense, and even it is out of context of the first sentence unless you are insinuating that work equals faith or something, which obviously you have not clarified.
Just constructive criticism, take it or leave it.