"I am among those who think that science has great beauty. A scientist in his laboratory is not only a technician: he …"

"Humanity needs practical men, who get the most out of their work, and, without forgetting the general good, safeguard…"

"We must not forget that when radium was discovered no one knew that it would prove useful in hospitals. The work was …"

"You cannot hope to build a better world without improving the individuals. To that end each of us must work for his o…"

"All my life through, the new sights of Nature made me rejoice like a child."

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

"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 …"

"Be less curious about people and more curious about ideas."

"Life is not easy for any of us. But what of that? We must have perseverance and above all confidence in ourselves. We…"

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