It's always good to marry your best friend.

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

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

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.

Radium is not to enrich any one. It is an element; it is for all people.

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

Each of us must work for his own improvement, and at the same time share a general responsibility for all humanity.