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. (Traditional Proverb)
True teaching is not an accumulation of knowledge it is an awaking of consciousness which goes through successive stages. (Traditional 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. (Traditional Proverb)
To teach one must know the nature of those whom one is teaching. (Traditional Proverb)