The fact that Obama is getting criticism from the left and the right might reflect his understanding of the underlying political dynamics.

Once a popular Alaska governor with a modest record of accomplishment, Palin could conceivably revive her reputation in this era of short memories. But it's hard to imagine her name atop the GOP ballot in 2016, when a cast of heavyweights who sat out 2012 will be vying for the nomination.

Barack Obama won a second term but no mandate. Thanks in part to his own small-bore and brutish campaign, victory guarantees the president nothing more than the headache of building consensus in a gridlocked capital on behalf of a polarized public.

To be fair, my analysis failed to spell out Obama's first-term accomplishments, although I did acknowledge his 'enormous skills' and tried to focus readers on the distinction between good and great presidencies.

I don't like talking about which bits I like or don't like about my body. Everybody has something they're not happy with, and my only advice would be, 'Do something about it - exercise or eat less, but don't do nothing!' Find ways to enhance the good bits and camouflage the bad bits.

I'm just trying to spread the word and upturn the myth that actually you should be resting after cancer treatment. You shouldn't; you should be getting out and doing any kind of exercise you can. You don't have to run a marathon, but you just have to up your activity levels.

Just as you can't blindly follow fashion, you can't follow fitness, either.

No innovation in the past 200 years has done more to save lives and improve health than the sanitation revolution triggered by invention of the toilet. But it did not go far enough. It only reached one-third of the world.