The sensitive plate, the gas which is ionised, the fluorescent screen, are in reality receivers, into another kind of energy, chemical energy, ionic energy... luminous energy.

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

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.

It was like a new world opened to me, the world of science, which I was at last permitted to know in all liberty.

You cannot hope to build a better world without improving the individuals.

More and more, I feel the need for a house and a garden.

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