To define a good meeting is hard. It is easier to define a bad meeting.
To define a good speech is hard. It is easier to define a bad speech.
To identify a well functioning team is hard. It is easier to identify a dysfunctional team.
It is hard to define a good diet. It is easier to list out whatever makes a bad diet.
Good design is invisible. Bad design sticks out like a sore thumb.
It is hard to list out what makes us happy. It is easier to list out what makes makes us unhappy.
In most cases, it is tricky for us to define goodness, but far easier to define badness. To get better, we can start by weeding out the bad. Once we do that, the good stuff takes care of itself.