[Ibby]

the difference between faith and science is one of understanding.

if you drop a ball a thousand times and, every time you drop it, it falls to the floor, as a result of gravity...
then faith would be the assumption that the ball always falls
wheras science says, the ball will always move towards the most massive object whose field of gravity reaches the ball.


this example doesn't work in every case, but in the real world, faith can often be explained just a lack of understanding.
However, theists have an entirely different kind of faith. Faith in a deity is a different kind of faith, to this, entirely. It is baseless and illogical - and still can't be absolutely said to be wrong by anyone who isn't a dick.