Quite early on, I realized that to truly help a large number of patients, I needed to go beyond the individual approach and create a methodology. I recall the words of Edith Piaf, who said, "I don't sing for everyone—I sing for everyone." And yet, she sang for everyone. So it was for me—there was that inspiration, that moment when the idea of phenotypic dermatology first arose. It was from this moment that the path to a systemic view of the skin began—not as a surface, but as an entire biological universe.
