If there is one ability that is important for all truly effective leaders, I believe it can be found in an ancient Greek aphorism: Know thyself. It is only when you know who you are, your beliefs, your values, and how you want to show up in the world, that you are able to have conversations that matter—the heart of great leadership. Ask: what is it I truly believe? What is it I really want? What is it I am here to do? Lead from the answers.