Science has always said that it may not know everything now but it will know, eventually. But now we see that isn’t true. It is an idle boast. As foo… - Michael Crichton

Having wallowed in a delightful orgy of anti-French sentiment, having deplored and applauded the villains themselves, having relished the foibles of bankers, railwaymen, diplomats, and police, the public was now ready to see its faith restored in the basic soundness of banks, railroads, government, and police.

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.

Absence of proof is not proof of absence.