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

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…

In science, we must be interested in things, not in persons.

I have frequently been questioned, especially by women, of how I could reconcile family life with a scientific career. Well, it has not been easy.