"I am a Polish woman, and I am proud of it. And I am proud of my work. And I am proud of my discoveries. And I am proud of my contributions to humanity."

"There are cruel and unjust people, but they are not the majority."

"Humanity needs practical men, who get the most out of their work, and, without forgetting the general good, safeguard their own interests. But humanity also needs dreamers, for whom the disinterested …"

"After all, science is essentially an international thing."

"A scientist must not be a poet. A scientist must be a scientist."