C.S. Lewis.
The Einstein of Literature.
+++++++++
Id never really heard much about C.S. Lewis, but picking up some of the things he wrote, particularly Mere Christianity, made it clear to me oh my gosh, theres an incredibly compelling intellectual, rational basis for faith, which I had totally missed and assumed didnt exist. It took me a couple of years of fighting against that, of trying to prove that this was all wrong and that I could stick with my agnosticism. But ultimately, I realized I couldnt, that it was so compelling, Collins told Rubenstein.
C.S. Lewis was and is one of my favorite authors and helped to really expand my ideas of Christianity after I got saved.