I think intellectual honesty demands that philosophers accept this all-pervading normativity more openly. Apart from anything else, this helps explai… - Julian Baggini

The rehabilitation of reason is urgent because it is only through the proper use of reason that we can find our way out of the quagmires in which many big issues of our time have become stuck. Without a clear sense of what it means for one point of view to be more reasonable than another, it seems that the position one adopts is ultimately based on nothing more than personal opinion or preference.

Some may be surprised to have found that my defence of reason has been so eager to point out its limitations. With friends like me, you might wonder if reason needs enemies. But reason needs this kind of tough love. It cannot be treated like a child that needs unconditional support. Rather, it needs to be treated like an elite athlete that always needs to be pushed to work harder and improve, because otherwise nothing can be achieved. The most difficult issues we face often require us to go to the edge of reason, stretching its capacities to breaking point. To extend the training analogy, it would be a mistake only to praise it for what it does well almost effortlessly, such as analysing the formal logical validity of arguments or spotting contradictions. It needs also to pay attention to where it is naturally weaker, such as when it has to deal with ambiguity or premises that cannot be proven, and when it requires the careful use of judgement.

To be truly rational we need to acknowledge the limits of our rationality: nothing is more irrational than an unwarranted faith in reason.