My life isn’t theories and formulae. It’s part instinct, part common sense. Logic is as good a word as any, and I’ve absorbed what logic I have from everything and everyone… from my mother, from training as a ballet dancer, from Vogue magazine, from the laws of life and health and nature.

Hepburn contrasts abstract systems (“theories and formulae”) with a lived, eclectic intelligence shaped by experience. She frames her decision-making as a blend of instinct and “common sense,” suggesting that what people call “logic” is often accumulated practical wisdom rather than formal reasoning. The list of influences—mother, ballet training, Vogue, and “the laws of life and health and nature”—collapses high culture, popular media, discipline, and embodied knowledge into one continuum, implying that taste, ethics, and judgment are learned across many domains. The quote also reinforces Hepburn’s public persona: poised and thoughtful, yet resistant to pretension, grounding sophistication in humility and everyday learning.