I've been looking for this quote for a long time. I find and lose it regularly over the years. Always, my intention is to file it where I can easily find it again, but somehow, it is never right at hand. Now it is recorded here, and maybe I'll remember where this copy is.
[The] most important tribute any human being can pay to a poem or a piece of prose he or she really loves … is to learn it by heart. Not by brain, by heart; the expression is vital.