The heart knows best.
Here are some excerpts from an interview with former Israeli Prime Minister Benjamin Netanyahu:
"If I look back at all the decisions that I have made that counted for anything in my own life and in my position as Prime Minister, I have found that it is the heart that makes the best decisions. In addition to logic and the calculation of costs and benefits, there is a computation of the heart, which I think is actually a more trustworthy guide. At a certain point, you feel that something is right and you do it. It's that feeling that will guide me to take such an important step in my life.
There is no guarantee of success in anything you want to accomplish. In fact if you seek the guarantee of success, you will never succeed! If you're not willing to take risks or to fail, you cannot succeed. That is iron-clad.
The true winners are distinguished by the fact that they sometimes lose, but more importantly that they can rise up from defeat. You cannot succeed if you are not prepared to fail."