Most financial advice is about today

Most financial advice is about today. What should you do right now, and what stocks look like good buys today? But most of the time today is not that important. Over the course of your lifetime as an investor the decisions that you make today or tomorrow or next week will not matter nearly as much as what you do during the small number of days - likely 1% of the time or less - when everyone else around you is going crazy.

- from The Psychology of Money book by Morgan Housel