So to manipulate people, well some people, (and here I use manipulate in an neutral sense) we have to engage their emotions to get them to move in the direction we want.
It sounds cold and manipulative (in its negative sense).
Reason and logic I think tells us that reason and logic is incomplete, I have no problem with this. If we decide to live our lives on some emotional level, that is fine but I can't help thinking reason and logic should point in vaguely the same direction for some sort of guidance to our emotion? As we have seen in these threads we can't argue or discuss our individual perceptions of faith, because these are highly internal.
But we can discuss our internal assumptions (axioms) and how we have applied logic to those assumptions. Here we have a way of reviewing our direction.
Those that rely on faith (as described in the other thread) simply either agree with one another, or if like me on the outside looking in, wonder what g on. I have friends who are YEC, and when sufficient evidence is provided, they simply pull out the "faith" card and assert an inerrant Biblical old Earth .