We must not forget that when radium was discovered no one knew that it would prove useful in hospitals.

Life is not easy for any of us. But what of that? We must have perseverance and above all confidence in ourselves.

Humanity needs practical men, who get the most out of their work, and, without forgetting the general good, safeguard their own interests. But humanity also needs dreamers, for whom the disinterested development of an enterprise is so captivating that it becomes impossible for them to devote their care to their own material profit.

My husband and I were so closely united by our affection and our common work that we passed nearly all of our time together.

We must have perseverance and above all confidence in ourselves.

All my life through, the new sights of Nature made me rejoice like a child.

We believe the substance we have extracted from pitchblende contains a metal not yet observed, related to bismuth by its analytical properties. If the existence of this new metal is confirmed we propose to call it polonium, from the name of the original country of one of us.