Is rationalizing the rational capacity of reason rational?

Question

How would reason be rationalized by reason when rationalism has not achieve its highest capacity? I conclude rationalism is not rational enough to be even consider as "reason". What is your perspective?

Answer 1

"Those who invalidate reason ought seriously to consider whether they argue against reason with or without reason; if with reason, then they establish the principles that they are laboring to dethrone: but if they argue without reason (which, in order to be consistent with themselves they must do), they are out of reach of rational conviction, nor do they deserve a rational argument." -- Ethan Allen