Life sometimes seems complicated. There’s so much to understand and remember. Often, days feel like intelligence tests, designed to challenge our discrimination and perception. And the penalty for failing to solve these puzzles? Strangely, often as not, the only penalty’s the sense of self-reproach. We feel glum because we sense that we could have done better. Yet life takes care of us, even if we aren’t always sparkling. This week, that’s one very simple rule on which you can rely.