Um. Last year, I re-read Gibbon's Decline and Fall, and my favorite chapter (written in such a funny way!) is his detailing how his wife was having sex with everyone under the sun, and everyone in Rome knew it. Except for Marcus Aurelius himself; he lived in such a bubble, he couldn't see the reality in front of his nose. He was so unable to teach his son, Commodus, that when his son became emperor... well, Commodus turned out to be one of the most cruel and evil emperors in the history of Rome.
This made me question the "wisdom" of his Meditations (which, as a kid, I loved reading and whose advice I used to love): knowing this is how he lived and ruled and raised children, and those were the consequences... are we sure it's good advice? I'm not anymore.
Text here: http://sacred-texts.com/cla/gibbon/01/daf01013.htm