The three quantities by which modern science defines matter, once felt by ancient humanity as living cosmic realities before they hardened into abstraction.
Measure, Number and Weight in Anthroposophy is Rudolf Steiner's name for the three quantitative measures by which modern physical science defines the material world. In the lecture of 29 July 1923 at Dornach, printed in Colour (GA 228), Steiner traces how ancient clairvoyant humanity experienced measure, number and weight inwardly, as living cosmic realities, while modern consciousness fixes them as abstractions read from the scales, the measuring rod, and arithmetic. He notes that weight entered world-philosophy only with Lavoisier at the close of the eighteenth century. The sleeping soul, freed from the physical and etheric bodies, meets an opposite order where colour expands rather than counts and things possess a contrary, upward weight. The contemporary application lies in a phenomenology of colour, in Goethe's colour theory, and in a painting that seeks the luminous and the weightless.
Measure, number and weight are, for Rudolf Steiner, the three quantities by which modern physical science fixes the material world. He observed that ancient humanity experienced them as inner cosmic realities, giving heart and mind to colour and sound rather than to the scales. Only in recent centuries did consciousness reduce them to abstractions, and with that reduction art and the living quality of colour began to fall away.
In Steiner's Own Words
If you go back to quite ancient times in which man still had an original clairvoyance, we find that they took less notice of dimension, number and weight in earthly things. They were not so important to them. They devoted themselves more to the colours and sounds of earthly things. Remember that even Chemistry calculates in terms of weight only since Lavoisier; something more than a hundred years. Ancient mankind simply was not conscious that everything had to be defined according to earthly measure, number and weight.
What it Means Today
Steiner's claim that quantity once lived inwardly, then died into abstraction, found a careful modern witness in the physicist Arthur Zajonc. In Catching the Light: The Entwined History of Light and Mind (Bantam, 1993; Oxford University Press paperback, 1995), Zajonc, who taught physics at Amherst College and helped found the Mind and Life Institute's dialogues, traced how the science of light gradually severed the seen colour from the measured wavelength. His often-cited account of a person blind from birth whose sight is surgically restored, yet who at first sees no objects at all, only a formless field, makes Steiner's point in the language of the laboratory: the eye delivers measure and number, but a living perception of colour has to be built up by the soul. Zajonc named this an inner light that meets the outer, an idea he carried directly from Goethe's colour theory, which Steiner edited in his twenties.
Thalira synthesis: where the physicist measures the wavelength and the Goethean painter follows the deed of colour, Steiner places measure, number and weight at the threshold of sleep, so that to paint out of colour itself is to remember a quantity the ancient world still felt as weight rising, not weight falling. The practical work is small and concrete. A painter trained in the Goetheanum's colour exercises lays down a luminous wash and lets the form emerge from the colour rather than filling a drawn outline, learning to experience colour freed from weight.
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