There’s a viral trick where, if you ask people to “pretend” to answer a phone, the way they hold their hand will tell you which generation they belong to.

Maybe the same can be said for how they react to seeing a paycheck.

Struggling to find a sense of self is part of the human condition. What makes each person unique and “themself” is a complex topic in psychology and philosophy.

According to the American Psychological Association (APA), identity is defined by two major aspects. The first: “A set of physical, psychological, and interpersonal characteristics that is not wholly shared with any other person.”

And the second: “A range of affiliations (e.g., ethnicity) and social roles. Identity involves a sense of continuity, or the feeling that one is the same person today that one was yesterday or last year (despite physical or other changes).”

For all of our disagreements in modern American life, there are at least a few things most of us can agree on. One of those is the need for reform in public education. We don’t all agree on the solutions but many of the challenges are undeniable: retaining great teachers, reducing classroom size and updating the focus of student curriculums to reflect the ever-changing needs of a globalized workforce.

And while parents, politicians and activists debate those remedies, one voice is all-too-often ignored: that of teachers themselves. This is why a short video testimony from a teacher in the Atlanta suburb of Gwinnett County went viral. After all, it’s hard to deny the points made by someone who was just named teacher of the year and used the occasion to announce why he will be leaving the very school district that just honored him with that distinction.

So many of us have the desire to compartmentalize our personality traits into neat little boxes. “Oh, she’s such an INFJ. Oh, he’s such a Gemini.” Some of it is rooted (well sort of) in psychology, such as the Myers-Briggs Type Indicator, based loosely on Jungian ideas. Others rely on arguably less scientific data like stars and “rising signs.” Humans aren’t usually that simple.

That said, there’s still value in understanding one’s own personality and inclinations. Here’s a confession: I’ve taken countless personality tests because I just couldn’t figure out if I was an extrovert or an introvert. Neither description quite fit, and as someone constantly trying to understand what makes me tick, this has been frustrating.

Turns out, there are other options. The term “ambivert” got popularized in the 1930s (after being coined by Edmund S. Conklin in 1923), and it refers to a person “who has features of both an introvert (someone who prefers to spend time alone) and an extrovert (someone who prefers to be with other people) in their personality.”