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

We must have perseverance and above all confidence in ourselves.

Sometimes my courage fails me and I think I ought to stop working, live in the country and devote myself to gardening. But I am held by a thousand bonds, and I don't know when I shall be able to arrange things otherwise. Nor do I know whether, even by writing scientific books, I could live without the laboratory.

I have the best husband one could dream of; I could never have imagined finding one like him. He is a true gift of heaven, and the more we live together the more we love each other.

Stability can only be attained by inactive matter.

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

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.