It doesn’t matter how much we know or how smart we think we are if we cannot teach others, or if we aren’t able to succeed in getting our ideas across in a way that others might understand. As a personal trainer, I need to be able to explain ideas in more than one way, sometimes in ten different ways. Different people understand things differently. We are far from a one-size-fits-all population. The better I am at expressing myself, the better I’ll be able to reach others with my ideas and rationale.