“Nothing in life is to be feared, it is only to be understood.”

“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.”

“We discovered that peace at any price is no peace at all...that life at any price has no value whatever; that life is nothing without the privileges, the prides, the rights, the joys that make it worth living and also worth giving...and that there is something more hideous, more atrocious than war or than death; and that is to live in fear.”

“One never notices what has been done; one can only see what remains to be done.”

“All my life through, the new sights of nature made me rejoice like a child.”

“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 must be attained.”

“For the admirable gift of himself, and for the magnificent service he renders humanity, what reward does our society offer the scientist? Have these servants of an idea the necessary means of work? Have they an assured existence, sheltered from care? The example of Pierre Curiee, and of others, shows that they have none of these things; and that more often, before they can secure possible working conditions, they have to exhaust their youth and their powers in daily anxieties. Our society, in which reigns an eager desire for riches and luxury, does not understand the value of science. It does not realize that science is a most precious part of its moral patrimony. Nor does it take sufficient cognizance of the fact that science is at the base of all the progress that lightens the burden of life and lessens its suffering. Neither public powers nor private generosity actually accord to science and to scientists the support and the subsidies indispensable to fully effective work.”