"Nothing in life is to be feared, it is only to be understood. Now is the time to understand more, so that we may fear less."
"When one studies strongly radioactive substances special precautions must be taken if one wishes to be able to take delicate measurements. The various objects used in a chemical laboratory and those used in a chemical laboratory, and those which serve for experiments in physics, become radioactive in a short time and act upon photographic plates through black paper. Dust, the air of the room, and one's clothes all become radioactive."
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Source: Marie Curie's lecture at Vassar College in Poughkeepsie, New York, May 14, 1921.
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"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."
"First principle: never to let one's self be beaten down by persons or by events."
"Be less curious about people and more curious about ideas."
"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."
"Nothing in this world is to be feared... only understood."