A professor is one who talks in someone elses sleep. – W. H. Auden

Whatever you teach, be brief; what is quickly said the mind readily receives and faithfully retains, while everything superfluous runs over as from a full container. Who knows much says least. – Proverb

To teach well, we need not say all that we know, Successful teachers are effective in spite of the psychological theories they suffer under. – Proverb