It's an excerpt from what Marie Curie wrote in the book: https://www.amazon.com/Pierre-Curie-Autobiographical-Notes-Marie/dp/0486201996 https://www.amazon.com/

It's an excerpt from what Marie Curie wrote in the book: https://www.amazon.com/Pierre-Curie-Autobiographical-Notes-Marie/dp/0486201996 https://www.amazon.com/Pierre-Curie-Autobiographical-Notes-M... "Pierre Curie: With Autobiographical Notes by Marie Curie" It was published in 1923 by The Macmillan Company, and I've read somewhere that Marie Curie never allowed any new releases afterwards.