You are what you do, not what you say you'll do.

The line expresses a broadly Jungian emphasis on the primacy of lived reality over self-description: a person’s character is revealed in enacted patterns, not in intentions or self-narratives. In Jung’s terms, what one repeatedly does reflects the actual configuration of the psyche—habits, complexes, and the persona one performs—more reliably than conscious declarations. The aphorism also resonates with Jung’s insistence that psychological insight must be integrated into life (individuation) rather than remaining mere talk. As a maxim, it functions as a corrective to moral posturing and wishful self-concepts, urging accountability to observable behavior as the truest evidence of who someone is becoming.