Walking takes longer... than any other known form of locomotion except crawling. Thus it stretches time and prolongs life. Life is already too short to waste on speed.
The real work of men was hunting meat. The invention of agriculture was a giant step in the wrong direction, leading to serfdom, cities, and empire. From a race of hunters, artists, warriors, and tamers of horses, we degraded ourselves to what we are now: clerks, functionaries, laborers, entertainers, processors of information.