I really like this saying. What it reminds me of is this, that when we receive criticism from somebody we must stop and consider the source. What a person places as their priorities and their experiences in life are different than ours. If a person is a vegetarian they may very well say something about you eating meat. If their parents were alcoholics, they made give you a critical glance for enjoying that cocktail.
It is not even always this black and white. Depending on people’s goals, whether realized or not, they can be critical. Somebody who is driven and works on their passions 7 days a week may be accused of not having enough fun by the person who spends their weekends partying. The person involved with getting in touch with themselves spiritually may be looked down on by the person who is driven for taking time to meditate instead of work. (Although if you follow my work you will know that regular meditation can make you less stressed and more productive) It depends on what we value and where we want to go in life.
All of this being said, one of the first questions I recommend asking ourselves when we receive any sort of criticism is whether or not there is any truth in it. Often the way criticism is presented prevents us from gaining any real value out of it. If instead of hearing “You are a selfish jerk!” you heard “I think you could really benefit from trying harder to see situations from other people’s point of view.” We would be more likely to listen and contemplate if indeed there is truth in the statement. Sadly, often times by the time someone offers us criticism they are too emotional to word it productively. It is up to us to look past the harsh words and decide if the criticism is due to different values, or if indeed they have a valid point. Another way to learn if there is something you might need to work on is if you hear the same critique from several different people.
So, my friends, be confident enough in yourself to not let others opinions of you become your reality, but humble enough to realize they may be pointing out something you may have missed.