Try this: a rational attitude towards a potential object of knowledge which arises when we are subjectively certain it is true even though we are unable to gain theoretical or objective certainty. By contrast, knowledge implies objective and subjective certainty, while opinion is the state of having neither objective nor subjective certainty.
I once heard the difference between faith and belief described like this:
The famous performer, Blondel, crossed Niagara Falls on a tightrope, pushing his assistant in a wheelbarrow.
Afterwards, he asked for a volunteer from the crowd to take the place of his assistant. Nobody came forward.
Everbody believed that he could do it because they had seen it with their own eyes, but nobody had enough faith in Blondel.
Jenstar -- I think Mark Twain was right.
Moog, I think you are right; aliwaz I think you are wrong -- but I didn't understand a word of what either of you said...