Usually, what we most fear doing is what we most need to do. That phone call, that conversation, whatever the action might be-it is fear of unknown outcomes that prevents us from doing what we need to do. Define the worst case, accept it, and do it. I’ll repeat something might consider tattooing on your forehead: What we fear doing is most usually what we need to do. As I have heard said, a person’s success in life can usually be measured by the number of uncomfortable conversations he or she is willing to have. Resolve to do one thing every day that you fear.

Author: Tim Ferriss, Source: The Four Hour Work Week, pp. 46 & 47