Where does he live, how does he live, who meets the scientist who, more than others, has revolutionized the customs and minds of the young generations?We talk about Albert Hofmann who more than 50 years ago, in the Swiss laboratories of SANDOZ, discovered, almost by chance, lisergic acid, LSD.The scientist, more than ninety-year-old, opened his house immersed in the woods at the borders of Switzerland and Germany.He opened his archives and his "mind".And for the first time it allowed me to remember, photos, impressions and events to be published.