Superior technical achievements - used correctly both strategically and tactically - can beat any quantity numerically many times stronger yet technically inferior.
For unflagging interest and enjoyment, a household of children, if things go reasonably well, certainly all other forms of success and achievement lose their importance by comparison.
Greed for enlightenment and immortality is no different than greed for material wealth. It is self-centered and dualistic, and thus an obstacle to true attainment. Therefore these states are never achieved by those who covet them; rather, they are the reward of the virtuous.
It seems, in fact, that the more advanced a society is, the greater will be its interest in ruined things, for it will see in them a redemptively sobering reminder of the fragility of its own achievements. Ruins pose a direct challenge to our concern with power and rank, with bustle and fame. They puncture the inflated folly of our exhaustive and frenetic pursuit of wealth.