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

After all, science is essentially international, and it is only through lack of the historical sense that national qualities have been attributed to it.

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.

There are sadistic scientists who hurry to hunt down errors instead of establishing the truth.

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.