Marie Curie 

All my life through, the new sights of Nature made me rejoice like a child.Pierre and Marie Curie

I am among those who think that science has great beauty. A scientist in his laboratory is not only a technician: he is also a child placed before natural phenomena which impress him like a fairy tale. We should not allow it to be believed that all scientific progress can be reduced to mechanisms, machines, gearings, even though such machinery also has its beauty.

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.

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