Courageous people are still afraid.
But they don't let the fear paralyze them.
People who lack courage will give into fear more often than not, which actually has the long-term effect of strengthening the fear. When you avoid facing a fear and then feel relieved that you escaped it, this acts as a psychological reward that reinforces the mouse-like avoidance behavior, making you even more likely to avoid facing the fear in the future.
So the more you avoid starting a business, being an entrepreneur, or going for a presentation or even asking you boss for a raise , the more paralyzed you'll feel about taking such actions in the future. You are literally conditioning yourself to become more timid and mouse-like.
Remember: Believe...Knowledge...Opportunities (Pink Ambition)