To believe the modern world, man's uttermost progress and improvement lie in his mobility: his unstoppable determination to be everywhere on earth that his ambition and the omnipresent demands of money take him. In today's globe, if you're not moving - constantly - you're either dead or dying. Or at best a pariah.
Wow. And to think the uttermost progress - of anyone - was accomplished by a social outcast who succeeded in getting both hands and feet fatally nailed to a dead tree.