[Presently, science undergraduates] do not learn to write clearly and briefly, marshalling their points in due and aesthetically satisfying order, and eliminating inessentials. They are inept at those turns of phrase or happy analogy which throw a flying bridge across a chasm of misunderstanding and make contact between mind and mind.
To forget is to blithely toss aside the hard lessons that were hard won by others before us, thereby needlessly dooming us to endure the hard lessons that are likely to be forgotten by those who will follow us. And it is altogether reasonable that in order to avoid this repetitive trouncing, God graciously granted us memories.