Truth
Truth is virtue which requires courage. Courage which you're not born with but something that you yield.
Speaking truth is like waging a war. It is a war. It is a testament of your own stand and fortress which you fight for. Thus, it is the act of courage. Knowing things will go wrong, if you speak the truth. And they will, but it is that act of courage that you show - because you value the truth more than risk of going wrong.
It is also not the act of foolishness that you keep on speaking truth. Not everything requires you to speak too. Wait. Wait for the right time - when the right action arises itself.
Truth is also not what you believe. It is what is true, no matter who is looking at it. Agnostic of the stand point.
But if you feel disconnected from yourself. Lost in understanding the world and universe. Go deep within yourself. Spend that time and feel that.