It's sometimes easier to do the impossible than to do the embarrassing.
My worst personal problem is that my computer doesn't understand me.
Beware! I'm acting under the influence of human nature.
It's all very simple, or else it's all very complex, or perhaps it's neither, or both.
It's amazing how much research has gone into making some of the worst decisions.
Not only don't I know what tomorrow will bring, I'm still not entirely certain what yesterday brought?