3: Recognize the difference between patience and stubbornness
When the world changes, some things will be eliminated forever. All industries have cycles, some eventually disappear, and some make a comeback.
Patience is important, but it should not be blindly applied to all situations. It must be balanced between faith and flexibility. The economic environment often changes; it is best to keep only a few as beliefs, and the rest are ready to change with the environment at any time.