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.
I was taught that the way of progress was neither swift nor easy.
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.
I have frequently been questioned, especially by women, of how I could reconcile family life with a scientific career. Well, it has not been easy.
There are sadistic scientists who hurry to hunt down errors instead of establishing the truth.
I am one of those who think like Nobel, that humanity will draw more good than evil from new discoveries.