If an ass goes traveling it will not come home a horse. >>
Give neither counsel or salt till you are asked for it. >>
One of these days, is none of these days. >>
We love the precepts for the teacher's sake. >>
He who can, does. He who cannot, teaches. >>
A teacher affects eternity; he can never tell where his influence stop >>
To teach well, we need not say all that we know, Successful teachers are effective in spite of the psychological theories they suffer under.