In chemical terms, radium differs little from barium; the salts of these two elements are isomorphic, while those of radium are usually less soluble than the barium salts.

Be less curious about people and more curious about ideas.

I am one of those who think like Nobel, that humanity will draw more good than evil from new discoveries.

In 1903, I finished my doctor's thesis and obtained the degree. At the end of the same year, the Nobel prize was awarded jointly to Becquerel, my husband and me for the discovery of radioactivity and new radioactive elements.

I am among those who think that science has great beauty.

The first experiments on the biological properties of radium were successfully made in France, with samples from our laboratory, while my husband was living.