We're all suffering from imposter syndrome, at least a little. 

This was one of the most important and durable lessons learned early in my career from a military officer who said, despite world-class training, extraordinary peers and literally the best hardware money could buy, that he felt, occasionally, like a poser.

We all do, if we care about our roles, our impact and the gap between what we know and what we don't. 

Unchecked, imposter syndrome can be debilitating; as result a result, we can be indecisive, uncommitted or unaccountable. 

But a little bit of it can go a long way, like inoculation. It keeps us hungry for new ideas, sensitive to others and responsive to changing circumstances. 

Thanks Emma Duke for this post.