優生學jau1 sang1 hok6(英文:eugenics)係一套追求「提升人類遺傳質素」嘅諗法同做法,建基於物競天擇嘅概念。
優生學建基於兩個諗法:
於是優生學嘅諗法就主張,人類社會應該做到盡可能淨係俾「遺傳質素高」嘅個體繁殖後代,等人類嘅基因庫質素一代一代噉提升-即係鼓勵優質嘅人生細路。優生學可以溫和又可以極端,溫和派嘅例子有「提供津貼鼓勵啲質素高嘅個體生細路」,而比較極端派嘅例子有「立法禁止質素低嘅個體生細路」。
响廿一世紀初,優生學係一條好有爭議性嘅課題。有好多人都覺得優生學本質上就係邪惡嘅,但又有人覺得溫和派嘅優生學值得鼓勵。
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