President Xi Jinping has quoted foreign famous sayings and proverbs many times during his foreign affairs activities.

On June 17, 2016, in a signed article published by the Polish newspaper Repubblica, Xi Jinping quoted Marie Curie's famous saying that "people should not always look at what they have done, but should pay attention to what they have to do".

When and where did Marie Curie say this?

What is the meaning of the quote here?

Watch animations and gain knowledge.

Responsible editor: [Luo Pan]