The ancient Greeks knew a thing or two. This is a concept that is close to my heart, both as a teacher and as a human being. The second you believe you that you know best is the second you cease to learn. And a mind that is not learning is a mind that is wasted, and wasting away. Never stop looking at an perspectives and opinions. Don’t be afraid to argue an alternate opinion, because I can guarantee it will teach you more about yours. Do not speak just to be heard. Speak to facilitate new discussion and learning.