Everyone you learn from is your mentor. We’re mentors to one another. A teacher isn’t merely someone who stands at the front of a classroom.
Everyone is a potential teacher in their own way. We instruct each other through words and through actions.
I admire people who not only say wise things, but also act wisely. Such people are rare. I aim to be one of them myself, but I know I fall short. That’s at least half the battle though — knowing you’re a fool.