Fear is a healthy instinct, not a sign of weakness. It is a natural self-defense mechanism that is common to felines, wolves, hyenas, and most humans. Even fruit bats know fear, and I salute them for it. If you think the world is weird now, imagine how weird it would be if wild beasts had no fear.
Kingdom of Fear: Loathsome Secrets of a Star-Crossed Child in the F (ed. Simon and Schuster, 2011) - ISBN: 9781439126547