The work of science is to substitute facts for appearances, and demonstrations for impressions.

Things are often not as they seem. The sun appears to circle the earth, a confident speaker appears correct, a busy week appears productive. Careful inquiry exists to test those impressions and replace them with what can actually be shown, which is why its findings so often surprise.

Pick one impression you hold about your own life, perhaps that you are always busy, that a habit is harmless, or that a relationship is fine. Look for evidence rather than relying on the feeling. Track it for a week and see whether the facts match the appearance.