Faith is trust in something or someone, and that trust involves a positive and a negative element. The positive element is all that I think I know about that thing or person, all the warrants I have to believe that this canoe or this babysitter is trustworthy. The negative element is the genuine uncertainty of the situation, in that I cannot be entirely sure that the canoe won’t fail when I get into it, or that the babysitter won’t make a mistake to the harm of my child. So faith is anchored in knowledge and then is cantilevered over the unknown.