You see this quote all the time on K-12 educational material as a header, footer, slogan, logo, inspirational message, and so on. It obviously means something good about teachers. Maybe something good about education. The quote is by Henry Adams and comes from his book “The Education of Henry Adams” which sounds an awful lot like a title for a porn movie. But, according to Henry Adams,
A teacher affects eternity; he can never tell where his influence stops.
OMG. That sounds like bad news. The system of education sucks, the professors suck, the students are getting the shaft, and this will affect the students for their whole lives, and through them society in general, and the course of history itself. Bad teaching, Henry Adams is telling us, ruinz everything for everybody!
But this is not what people think is happening, is it?
A teacher is expected to teach truth, and may perhaps flatter himself that he does so, if he stops with the alphabet or the multiplication table, as a mother teaches truth by making her child eat with a spoon; but morals are quite another truth and philosophy is more complex still. A teacher must either treat history as a catalogue, a record, a romance, or as an evolution; and whether he affirms or denies evolution, he falls into all the burning faggots of the pit. He makes of his scholars either priests or atheists, plutocrats or socialists, judges or anarchists, almost in spite of himself. In essence incoherent and immoral, history had either to be taught as such — or