SAGITTARIUS (Nov. 22-Dec. 21)

Your eyes can discriminate between about 500 various shades of gray. Let's hope your moral compass is as precise in its power to distinguish subtle differences. Why? Because there will be no easy black-versus-white decisions to make in the near future; no simple, foolproof way to determine the distinctions between good and bad. I recommend that for now you give up hope of achieving utter certainty, and instead celebrate the refined pleasures of nuanced, complicated truth.