"There's one problem with all psychological knowledge - nobody can apply it to themselves. People can be incredibly astute about the shortcomings of their friends, spouses, children. But they have no insight into themselves at all. The same people who are coldly clear-eyed about the world around them have nothing but fantasies about themselves. Psychological knowledge doesn't work if you look in a mirror. This bizarre fact is, as far as I know, unexplained."
- Michael Crichton
"When you bump against the limits of your own honesty it is as though your thoughts get into a whirlpool, an infinite regress: You can say what you like, it takes you no further."
- Ludwig Wittgenstein