When he says that in that day all his thoughts perish, or flow away, perhaps under this expression he censures the madness of princes in setting no bounds to their hopes and desires, and scaling the very heavens in their ambition, like the insane Alexander of Macedon, who, upon hearing that there were other worlds, wept that he had not yet conquered one, although soon after the funeral urn sufficed him.
Speed is what distinguishes intelligence. No bird discovers how to fly: evolution used a trillion bird-years to 'discover' that – where merely hundreds of person-years sufficed.marvin minsky
The generation of Isaiah did not require the detailed description; his account, "I saw the Lord," &c., sufficed. The generation of the Babylonian exile wanted to learn all the details. ...Isaiah was so familiar with it that he did not consider it necessary to communicate it to others as a new thing, especially as it was well known to the intelligent.maimonides