R.A. Fisher
Opening
(Paper read at the International Eugenics Congress, 1921) That the mental and moral qualities of mankind are inherited to the same extent as are the physical characters is now so firmly established that we have some difficulty in realising the opposition which early investigators encountered in establishing this fact. . . .
Fisher RA. The evolution of the conscience in civilised communities: in special relation to sexual vices. Eugen Rev. 1922 October; 14(3): 190–193.