It is a mistake to think that we can control the breeding of mankind in the long run by an appeal to conscience.


Exploring new ethics for survival: the voyage of the spaceship Beagle (ed. Viking Adult, 1972)


It is a mistake to think that we can control the breeding of mankind in the long run by an appeal to conscience.

It is a mistake to think that we can control the breeding of mankind in the long run by an appeal to conscience.

It is a mistake to think that we can control the breeding of mankind in the long run by an appeal to conscience.

It is a mistake to think that we can control the breeding of mankind in the long run by an appeal to conscience.