"Man is a fire-stealing animal, and we can't help building machines and machine intelligences, even if, from time to time, we use them not only to outsmart ourselves but to bring us right up to the doorstep of Doom"
"Often and often afterwards, the beloved Aunt would ask me why I had never told anyone how I was being treated. Children tell little more than animals, for what comes to them they accept as eternally established"
"Certainly it is wrong to be cruel to animals and the destruction of a whole species can be a great evil. The capacity for feelings of pleasure and pain and for the form of life of which animals are capable clearly impose duties of compassion and humanity in their case"