The unweighable soul influences, a teacher’s inner thoughts, feelings, and convictions, that work formatively on a child beneath every outward lesson.
Imponderables in Education in Anthroposophy is Rudolf Steiner’s term for the unweighable soul influences that stream from teacher to child beneath all outward instruction. He set it out in the lectures published as Waldorf Education and Anthroposophy I (GA 304), speaking at The Hague on 27 February 1921, eighteen months after Emil Molt opened the first Waldorf school in Stuttgart. The German is Imponderabilien des Erziehens und Unterrichtens, the imponderables of upbringing and teaching. The bearer is the teacher’s own soul: the thoughts, feelings, and inner beliefs an adult carries while standing beside a child work formatively on that child, whether or not a word is spoken about them. Steiner’s test case is the chrysalis and the butterfly offered as a picture of the immortal soul. That image awakens a sense of immortality only when the teacher holds it as sacred conviction, not as a clever comparison invented for a pupil assumed too young for the truth.
Imponderables in education are the things a teacher can neither weigh nor hide. Steiner held that a child takes in the moral quality of an adult’s inner life directly, through no visible channel, and that this absorption shapes the child more durably than the lesson content does. The teaching turns teacher training inward: what the teacher is counts for more than what the teacher says.
In Steiner’s Own Words
During the first seven years of life, one cannot guide and direct a child by reprimands, nor by moral commands. During this period, one must guide a child by one’s own deeds and by setting an example. But there are of course imponderables to be reckoned with in human as in outer nature. We guide a child not only with external deeds, but also with inner thoughts and feelings. If children enjoy the company of grown-ups who never allow unworthy thoughts or feelings to enter into their lives, something noble and good could become of them. On the other hand, if adults allow themselves mean, ignoble thoughts or feelings when they are around young people, believing that such thoughts or feelings do not matter since everyone is safely ensheathed within an individual bodily structure, they are mistaken, for such things do work on children. Imponderables are at work.
What it Means Today
Waldorf teacher training has treated this claim as a working instrument rather than a piety. The first school opened in Stuttgart in September 1919 under Emil Molt, and by the time Steiner spoke at The Hague in February 1921 the faculty was already being asked to prepare its inner condition, not only its lesson plans. Corroboration arrived later from outside anthroposophy entirely. In 1968 Robert Rosenthal of Harvard and Lenore Jacobson, then a school principal in South San Francisco, published Pygmalion in the Classroom. They had told teachers that certain pupils, in fact picked at random, were about to bloom intellectually. Nothing was said to the children. The teachers’ altered expectation alone travelled, and the identified pupils gained on later testing. The size of the effect has been argued over and narrowed by decades of replication, yet the core observation held: a belief an adult never states reaches a child through channels nobody in the room can name.
Thalira synthesis: Rosenthal and Jacobson measured the accidental case, where the teacher’s silent belief is planted by an experimenter. Steiner was after the chosen case, where the adult works on their own thoughts and feelings as deliberately as on the timetable, because the chrysalis only teaches immortality when the one holding it up believes what it shows.
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