"Just as our ancient ancestors drew animals on cave walls and carved animals from wood and bone, we decorate our homes with animal prints and motifs, give our children stuffed animals to clutch, cartoon animals to watch, animal stories to read."

"Artificial intelligence is growing up fast, as are robots whose facial expressions can elicit empathy and make your mirror neurons quiver."

"It began in mystery, and it will end in mystery, but what a savage and beautiful country lies in between."

"As a species, we've somehow survived large and small ice ages, genetic bottlenecks, plagues, world wars and all manner of natural disasters, but I sometimes wonder if we'll survive our own ingenuity."

"A happy life is one which is in accordance with its own nature."

"Part of making any endeavour is that each one has its own special problems. It's the nature of the process."

"Married love between man and woman is bigger than oaths guarded by right of nature."

"Fear not, we are of the nature of the lion, and cannot descend to the destruction of mice and such small beasts."