The Human Instinct of Fight or Flight

The way I see it, our natural human instinct is to fight or flee that which we perceive to be dangerous. Although this mechanism evolved to protect us, it serves as the single greatest limiting process to our growth. To put this process in perspective and not let it rule my life, expect the unexpected; make the unfamiliar familiar; make the unknown known; make the uncomfortable comfortable; believe the unbelievable.
― Charles F. Glassman