I never see what has been done; I only see what remains to be done.
Radium is not to enrich any one. It is an element; it is for all people.
All my life through, the new sights of Nature made me rejoice like a child.
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.
In science we must be interested in things, not in persons.
Life is not easy for any of us. But what of that? We must have perseverance and above all confidence in ourselves. We must believe that we are gifted for something, and that this thing, at whatever cost, must be attained.