Appearances are often deceiving! Don’t let yourself be carried away by first impressions because you could be completely wrong.
The saying “the habit does not make the monk” refers to the fact that people should not be judged by their appearance but instead be distinguished by their behavior and values.
Another way of saying it is that “not everything is what it seems.” Get to know other people, not only on the outside but above all, on the inside. The most important thing is not how they dress, what music they listen to, and what they do when they get bored, but what they give importance to, what they value. In short: what matters is what they have in their hearts.