The serious artist must be as open as nature. Nature does not give all of herself in a paragraph. She is rugged and not set apart into discreet categories.
The secret of popular writing is never to put more on a given page than the common reader can lap off it with no strain whatsoever on his habitually slack attention.
Seems fairly clear that you fix a breed by LIMITING the amount of alien infiltration. You make a race by homogeneity and by avoiding in breeding, No argument has ever been sprouted against it. You like it in dogs and horses.
