Our staunch Mormon commenter Leo rightly points out that,
… apart from revelation and experience [reason must] be humble. The Book of Job is full of arguments back and forth, quite impressive ones, and the conclusion of the book suggests humility before God regardless of how tight one’s argument might look. The world’s philosophical schools are hardly in agreement, and a recent study suggests 62% of philosophers are non-believers. Many of them would argue against all religion by the light of their reason.
That this is all true is fairly obvious. And we would do well to remember it; I, in particular, should bear it ever in mind, I know (all too well, as I grope forward – I hope it is forward – through the darkness, knees skinned and toes stubbed on this scandal and that). Reason ought to be humble; reason would be the first to insist upon it. That reason should be humble is only reasonable; the notion is an issue and product of reason. Therein lies a clue.