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.
Jack LondonMan rarely places a proper valuation upon his womankind, at least not until deprived of them.
Jack LondonFor the pride of trace and trail was his, and sick unto death, he could not bear that another dog should do his work.
Jack London