We have to judge politicians by their cumulative score. In one innings they make a great catch in another they drop the ball. In one they score a home run in another they strike out. But it is their cumulative batting average that we are interested in.
When I was at drama school I wanted to change the world and thought I had some great wisdom to impart to people about humanity. Now that I'm older I know enough to realise that I know nothing at all.