This quote is attributed to Criss Jami (birth name Christopher James Gilbert), a poet and writer who was born in Lynchburg, VA, in 1987. Jami reminds us that we are all human, regardless of external labels society confers or those which we bestow upon ourselves. In other words, when we try to measure our worth by external factors such as wealth, professional success, or fame, we are not using the correct tools to assess our importance in the world. Of course, we also tend to measure other people using this same criteria.
In a perfect world, we would all strive to treat each other without bias. However, the class system is so entrenched in our society that it is difficult to imagine a world in which one's standing in society doesn't matter.
Only when we practice empathy and truly decide to view all people as equal and valuable members of society will we approach anything like equality.