Leave this one out, Excepting in the case of man himself, hardly anyone is so ignorant as to allow his worst animals to breed.
And this one... Vaccination has preserved thousands who from a weak constitution would formerly have suc-cumbed to smallpox. Thus, the weak members of civilized societies propagate their kind. No one who has attended to the breeding of domestic animals will doubt that this must be highly injurious to the race of man....
Or you can just snippet us to death.
When you try to nail him down on any specific quotes and how he comes to his conclusion from that post, he jumps the shark.