Intelligent men are cruel. Stupid men are monstrously cruel.
The human race is doomed to sink back farther and farther into the primitive night ere again it begins its bloody climb upward to civilization.
They were firemakers! They were gods! [humans]
There is such a thing as anaesthesia of pain, engendered by pain too exquisite to be borne.
The Law is a lie, and through it men lie most shamelessly.
Our ape-like and arboreal ancestors entered upon the first of many short cuts. To crack a marrow-bone with a rock was the act which fathered the tool, and between the cracking of a marrow-bone and the riding down town in an automobile lies only a difference of degree.