[102] For as the man of good natural endowments is better than he who is only a learner, for the one resembles the sense of seeing, the other that of hearing, and hearing is always reckoned as entitled to a lesser honour than seeing; so also, he who is endowed with a good memory is at all times superior to him who only recollects, because the one is combined with forgetfulness, but the other continues unalloyed and unadulterated from beginning to end.