For example, even such a seemingly trivial and "normal" thing as the compulsive need to be right in an argument and make the other person wrong—defending the mental position with which you have identified—is due to the fear of death. If you identify with a mental position, then if you are wrong, your mind-based sense of self is seriously threatened with annihilation.

Eckhart Tolle

from The Power of Now: A Guide to Spiritual Enlightenment