Iu-seng-ha̍k

"Iu-seng-ha̍k sī jîn-lūi ián-hòa ê chū-ngó͘ ín-chhōa͘" (Eugenics is the self-direction of human evolution). 1921 nî Kok-chè Iu-seng-ha̍k Hōe-gī ê piau-chì.

Iu-seng-ha̍k sī chi̍t khóan kho-ha̍k ia̍h chèng-tī-siōng ê su-sióng kap ūn-tōng, tī 20 sè-kí ê chêng-pòaⁿ liû-hêng, sī hit-tong-sî chéng-cho̍k iu-o̍at ê lí-iû chi it.