Marie Curie

"The chief difficulty lay in the fact that pitchblende is a very complex mineral and contains in varying quantities nearly all the known metals. ...The analysis of pitchblende by chemical methods, using the procedure sketched above, led to the discovery of two very active bodies, polonium and radium. The name polonium was given to the first substance discovered by Mme Curie in honor of the country of her birth. The name radium was a very happy inspiration of the discoverers, for this substance in the pure state possesses the property of radio-activity to an astonishing degree."

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

"Marie Curie was at heart a Baconian, boiling tons of crude uranium ore to demolish the dogma of the indestructibility of atoms."

"In the 1970s we were rediscovering women whose lives had been dropped out of history or distorted, like Susan B. Anthony, Harriet Tubman, Emily Dickinson, Marie Curie, Ida B. Wells-Barnett, Hannah Senesch, Ethel Rosenberg."

"Although born in a strongly Catholic country, at the age of 17 Marie Curie rejected all forms of religion, professing atheism and placing her trust solely in Enlightenment rationality and progress. She therefore adhered to Positivism, which became her mindset and guided her every action. Feminism found in her an icon of redemption and emancipation. Suffice it to say that in 1885, she went to the employment office to look for work, due to the financial difficulties her family was experiencing at the time, and found a job as a governess."

"Marie Curie made a detailed examination by the electrical method of the great majority of known substances, including the very rare elements, to see if they possessed any activity. In cases when it was possible, several compounds of the elements were examined. With the exception of and , none of the other substances possessed an activity even of the order of 1/100 of ."

"It seemed probable that the large activity of some of these minerals, compared with uranium and thorium, was due to the presence of small quantities of some very active substance, which was different from the known bodies thorium and uranium. This supposition was completely verified by the work of M. and Mme Curie, who were able to separate from pitchblende by purely chemical methods two active bodies, one of which in the pure state is over a million times more active than the metal uranium. This important discovery was due entirely to the property of radio-activity possessed by the new bodies. The only guide in their separation was the activity of the products obtained. ...The activity of the specimens thus served as a basis of rough qualitative and quantitative analysis, analogous in some respects to the indication of the spectroscope."

"One never notices what has been done; one can only see what remains to be done."

"I have no dress except the one I wear every day. If you are going to be kind enough to give me one, please let it be practical and dark so that I can put it on afterwards to go to the laboratory."

"Be less curious about people and more curious about ideas."

"Life is not easy for any of us. But what of that? We must have perseverance and above all confidence in ourselves. We must believe that we are gifted for something, and that this thing, at whatever cost, must be attained."

"We must not forget that 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. It must be done for itself, for the beauty of science, and then there is always the chance that a scientific discovery may become like the radium a benefit for humanity."

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

"You cannot hope to build a better world without improving the individuals. To that end each of us must work for his own improvement, and at the same time share a general responsibility for all humanity, our particular duty being to aid those to whom we think we can be most useful."

"I believe international work is a heavy task, but that it is nevertheless indispensable to go through an apprenticeship in it, at the cost of many efforts and also of a real spirit of sacrifice: however imperfect it may be, the work of Geneva has a grandeur that deserves our support."

"I am among those who think that science has great beauty. A scientist in his laboratory is not only a technician: he is also a child placed before natural phenomena which impress him like a fairy tale. We should not allow it to be believed that all scientific progress can be reduced to mechanisms, machines, gearings, even though such machinery also has its beauty. Neither do I believe that the spirit of adventure runs any risk of disappearing in our world. If I see anything vital around me, it is precisely that spirit of adventure, which seems indestructible and is akin to curiosity."

"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. Without doubt, these dreamers do not deserve wealth, because they do not desire it. Even so, a well-organized society should assure to such workers the efficient means of accomplishing their task, in a life freed from material care and freely consecrated to research."

"I was taught that the way of progress was neither swift nor easy."

"There are sadistic scientists who hurry to hunt down errors instead of establishing the truth."

"Wir dürfen nicht hoffen, eine bessere Welt zu erbauen, ehe nicht die Individuen besser werden. In diesem Sinn soll jeder von uns an seiner eigenen Vervollkommnung arbeiten, indem er auf sich nimmt, was ihm im Lebensganzen der Menschheit an Verantwortlichkeit zukommt, und sich seiner Pflicht bewusst bleibt, denen zu helfen, denen er am ehesten nützlich sein kann."

"Warum können wir die Elemente nicht einfach als die Strahlenden bezeichnen? Wir können dafür auch ein lateinisches Wort nehmen und sie radioaktive Elemente nennen. Ihre Eigenschaft, Strahlen auszusenden, können wir als Strahlungstätigkeit oder Radioaktivität bezeichnen."

"Sie müssen ihr Talent entdecken und benutzen. Sie müssen herausfinden, wo ihre Stärke liegt. Haben Sie den Mut, mit ihrem Kopf zu denken. Das wird ihr Selbstvertrauen und ihre Kräfte verdoppeln."

"Pierre Curie stand am Beginn eines neuen Lebensabschnittes, der ihm zugleich mit mächtigeren Hilfsmitteln die natürliche Fortsetzung einer großen wissenschaftlichen Laufbahn gebracht hätte."

"Ich möchte meiner Heimat ein Geschenk machen, Pierre. Ich möchte das Element Polonium nennen."

"Ich gehöre zu denen, die die besondere Schönheit des wissenschaftlichen Forschens erfasst haben. Ein Gelehrter in einem Laboratorium ist nicht nur ein Techniker, er steht auch vor den Naturvorgängen wie ein Kind vor einer Märchenwelt."