Scientist Quotes and aphorisms about course Marie Curie ,, All my mind was centered on my studies, which, especially at the beginning, were difficult. In fact... Marie Curie Abraham Pais Carl Zeiss Dan Shechtman ,, Crystallographers believed in X-ray results, which are of course very accurate. But the x-rays are ... Nancy Roman Otto Wallach Rana el Kaliouby Vaclav Smil Vera Rubin