Nobel Prize relevant fields was greater), a greater delay in awarding Nobel Prizes for women's achievements making longevity a more important factor for women (Nobel Prizes are not awarded posthumously), and a tendency to omit women from jointly awarded Nobel Prizes. Four people have received two Nobel Prizes. Marie Curie received the Physics Prize in 1903 for her work on radioactivity and the Chemistry Prize in 1911 for the isolation of pure radium, making her the only person to be awarded a Nobel Prize in two different sciences. Linus Pauling was awarded the 1954 Chemistry Prize for his research into the chemical
Nobel Prize controversies in his novel, "Doctor Zhivago"." Pasternak died without ever receiving the prize. He was eventually honored by the Nobel Foundation at a banquet in Stockholm on 9 December 1989, when they presented his medal to his son. The 2010 Nobel Peace Prize was awarded to Liu Xiaobo while he was serving a prison sentence for "subversion of the state", with the Chinese government not allowing him or his family members to attend the ceremony. Two laureates voluntarily declined the Nobel Prize. Jean-Paul Sartre declined the 1964 prize for Literature, stating, "A writer must refuse to allow himself to be transformed