Tumultuous, frustrating, and utterly unpredictable – 2020 has left more investors flummoxed than any other year in recent history. From the precipitous fall in March to the jaw-dropping rally that has followed, the year has served as a valuable reminder of some age-old, simple investing tenets that trump complicated investing algorithms and formulae any day of the week! As we move into a new year, it is worthwhile revisiting some of them; and committing them firmly to memory. Here are the top four lessons in our book.