Insecure, secure, and proactive people

About a week ago, Adam Grant, organizational psychologist at Wharton posted this on his LinkedIn page:

Insecure people pretend to know things they don’t. They dismiss expertise from others.
Secure people admit what they don’t know. They defer to expertise in others.
Proactive people take the initiative to learn what they don’t know. They acquire expertise from others.

This resonated!