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 LondonBut this is not a world of free freights. One pays according to an iron schedule--for every strength the balanced weakness; for every high a corresponding low; for every fictitious god-like moment an equivalent time in reptilian slime. For every feat of telescoping long days and weeks of life into mad magnificent instants, one must pay with shortened life, and, oft-times, with savage usury added.
Jack London