The lasting imprint the Ego stamps on the three soul-members through repeated deed and habit, self-wrought rather than inborn, and carried from life to life.
Human Character in Anthroposophy is the abiding configuration the Ego stamps on the three soul-members through repeated action and habit. In Rudolf Steiner's Metamorphoses of the Soul (GA 58, 1910), character is the unified imprint the I, the bearer of self-consciousness, presses onto the Sentient Soul, Intellectual Soul, and Consciousness Soul, sounding them like an instrument into harmony or disharmony. Unlike the four temperaments, which are inborn constitution, character is self-wrought: it ripens between birth and death and carries from one earthly life to the next as the fruit of past deeds. An animal arrives with fixed character; a human being arrives with character only latent, then shapes it through the moral work of the Ego on the soul, which is why education and self-formation can genuinely change it.
Human character, in Rudolf Steiner's anthroposophy, is the signature the I writes on its own soul. Steiner distinguishes it sharply from temperament: temperament is the constitution we are born with, while character is the harmony or discord the Ego produces by playing on the Sentient, Intellectual, and Consciousness Souls. Because the Ego does this work itself, character can be schooled, deepened, and reshaped across a lifetime.
In Steiner's Own Words
Throughout childhood and youth a man works into the finer Organisation of his inner and outer nature certain determining characteristics and motives for action, brought by his Ego from a previous life. While the Ego thus impresses itself from within on its vehicles of expression, the fact of its activity and its way of working combine to form the character which a man presents to the world. Between birth and death the Ego works on the organs of the soul, the Sentient Soul, Intellectual Soul and Consciousness Soul, in such a way that they respond to what it has made of itself.
What it Means Today
The most exact modern parallel comes from William James, whose chapter "Habit" in The Principles of Psychology (1890) argues that character is built, not given. James held that by about the age of thirty "the character has set like plaster, and will never soften again," because every repeated act lays down a nervous pathway that the will afterward travels by default. His warning that we are "spinning our own fates, good or evil, and never to be undone" is the same insight Steiner pressed twenty years later: character is the residue of deeds, accumulated through the Ego's work, not a fixed inheritance. Where the two part company is instructive. James grounds the setting of character in the plasticity of the nervous system, so his clock stops at one lifetime; Steiner grounds it in the Ego's moral activity on the Sentient, Intellectual, and Consciousness Souls, so the account reaches across the threshold of death and into a next earthly life.
Thalira synthesis: read together, James and Steiner describe one law at two depths, that the self is the sculptor of its own outline, so the deeds you repeat today are quietly carving the face your soul will wear tomorrow, and in Steiner's reading, the one it will bring to its next birth.
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