„The duration of the life of men may be considerably increased. It would be true progress to go back to the simple dishes of our ancestors. … Progress would consist in simplifying many sides of the lives of civilised people.“
— Élie Metchnikoff
Quoted in Strength and Diet https://books.google.it/books?id=uexsAAAAMAAJ by Francis Albert Rollo Russell (London: Longmans, Green, & Co, 1905), p. 2.