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In page Katherine MacLean:

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Damon Knight wrote, "As a science fiction writer she has few peers; her work is not only technically brilliant but has a rare human warmth and richness."[1] Brian Aldiss noted[citation needed] that she could "do the hard stuff magnificently," while Theodore Sturgeon observed[citation needed] that she "generally starts from a base of hard science, or rationalizes psi phenomena with beautifully finished logic."