感冒，没锻炼
大惑易性。小人则以身殉利，士则以身殉名，大夫则以身殉家，圣人则以身殉天下。
So why is it so hard to payattention? Well, studies show that even when we're really trying topay attention to something -- like maybe this talk -- at somepoint, about half of us will drift off into a daydream, or have thisurge to check our Twitter feed.
