Why didn't Madame Curie patent radium in my faith?

Because Curie was a dreamer. They are strongly attracted by their careers and have neither leisure nor enthusiasm to pursue material interests. She believes that radium and all the elements discovered later belong to all mankind in the world.

It is selfish to apply for a personal patent. She hopes to make better use of this element without applying for a patent.

For the benefit of mankind, she didn't apply, and she hoped that all the elements discovered later would not be applied.

Because Madame Curie thinks this is the work of scientists.