"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"

This quote by Joseph Addison talks to the concept that courage can originate from two various sources. The very first is from an individual's constitution, or their natural disposition. This type of courage can be unreliable, as it may come and go depending upon the circumstance. The second source of courage is an inner voice. This kind of guts is more trustworthy, as it is based on a moral commitment and is most likely to remain consistent in any scenario. Addison is recommending that nerve based upon a sense of duty is more dependable than courage based on an individual's constitution. He is stressing the importance of having an ethical compass to direct one's actions, rather than relying solely on one's natural personality.