"He was a crystal of morality among our scientists"

This quote by Nikita Khrushchev is a testimony to the moral character of the scientist he is describing. It implies that this scientist was a shining example of morality amongst his peers. He was a beacon of ethical habits, setting a high standard for the other researchers to follow. He was a good example for the clinical community, showing that it is possible to be both a successful researcher and a moral person. His ethical character was like a crystal, pure and untarnished. He was a suggestion that science and morality can coexist, and that it is possible to be a successful scientist without jeopardizing one's worths. His example was a source of motivation for the other researchers, showing them that it is possible to be both a successful researcher and a moral person.