America, which has the most glorious present still existing in the world today, hardly stops to enjoy it, in her insatiable appetite for the future.

The remark contrasts America’s material vitality and opportunity—its “glorious present”—with a cultural restlessness that treats the present as merely a stepping-stone to what comes next. Lindbergh suggests that a national temperament oriented toward progress, expansion, and self-improvement can become an “insatiable appetite,” eroding gratitude, contemplation, and the capacity to savor existing achievements. The line reads as both admiration and warning: admiration for the abundance and dynamism she perceives, and warning that perpetual futurity can produce dissatisfaction and spiritual thinness. Implicitly, it advocates a more balanced temporal stance—progress without forfeiting attention to the lived moment.