I'm less worried about accomplishment - as younger people always can't help but be - and more concerned with spending my time well, spending time with my family, and reading, learning things.

Kids are a great analogy. You want your kids to grow up, and you don't want your kids to grow up. You want your kids to become independent of you, but it's also a parent's worst nightmare: That they won't need you. It's like the real tragedy of parenting.

There is a glaring reason that the necessary total ban on nontherapeutic use of antibiotics hasn't happened: The factory farm industry, allied with the pharmaceutical industry, has more power than public-health professionals.

We say no to lots of things that would please us. I would like to punch people every now and then, but I don't. I would like to have something for free rather than pay for it. I would like to skip to the front of the line... I don't mean to brush aside the taste of meat, which is a powerful attraction. But its power is not without limit.

Just about every children's book in my local bookstore has an animal for its hero. But then, only a few feet away in the cookbook section, just about every cookbook includes recipes for cooking animals. Is there a more illuminating illustration of our paradoxical relationship with the nonhuman world?