Courage that grows from constitution often forsakes a man when he has occasion for it courage which arises from a sense of duty acts in a uniform manner.

Summary

This quote suggests that courage that comes from one's inner strength or character might not always prevail when faced with challenging situations. This type of courage is unreliable and could desert a person when they truly need it. In contrast, courage that stems from a sense of duty or responsibility tends to be consistent and dependable. It implies that when someone feels a moral obligation or duty to act courageously, they are more likely to consistently exhibit bravery, regardless of the circumstances.