It was no good digging for something that wouldn't be there.
"There's life for you, Doctor," said Dave Cowan.

"Life has to live on life, humans same as dogs.

Life is something that keeps tearing itself down and building itself up again; everybody killing something else and eating it.

Do you understand that ?" "Yes, sir," said Wilbur, believing he did.

Dogs killed gophers if they caught them, and human beings killed chickens for Sunday dinners.
"Humans are the best killers of all," said Dave.