That mores is strictly a matter of local custom cannot be denied. But that ethics is pure opinion also...? Maybe there are times for murder, and theft and slavery...Harry Harrison's immortal science fiction tale, the Ethical Engineer!
Deathworld (Book 1&2) : Deathworld Series
Harry Harrison
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The Stainless Steel Rat
Harry Harrison
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Black Cat Weekly #91
M. Christian, Jacqueline Freimor, Kathleen Marple Kalb, Darrell Schweitzer, Hal Charles, Dick Donovan, Harry Harrison, George O. Smith, Noel Loomis, Harvey J. O’Higgins
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The Stainless Steel Rat
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Planet of the Damned
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Deathworld : Book 1&2
Harry Harrison
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B. J. Harrison Reads Deathworld
Harry Harrison
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The Ethical Engineer : Deathworld 2
Harry Harrison
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Deathworld : Book 1&2
Harry Harrison
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Deathworld 2: The Ethical Engineer (Illustrated) : Deathworld Series
Harry Harrison
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Deathworld (Book 1&2) : Deathworld Series
Harry Harrison
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The Stainless Steel Rat
Harry Harrison
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