Marie Curie

When radium was discovered, no one knew that it would prove useful in hospitals. The work was one of pure science. And this is a proof that scientific work must not be considered from the point of view of the direct usefulness of it.

The thing I always liked best about touring abroad was constantly running into different people, different cultures, different foods. It really pumped up my batteries... I'm constantly playing to a demographically diverse audience... one generation is driven by nostalgia, the next by curiosity. And that's why I have no plans to retire.