Franklin warns that small expenses can become significant when they are repeated or ignored. A single minor cost may appear harmless, just as a small leak may seem insignificant on a large ship. Over time, however, many such losses can accumulate until they seriously weaken a person’s finances.

The comparison emphasises the importance of paying attention to details rather than focusing only on large purchases or obvious risks. Financial problems are not always caused by one major mistake; they can also develop gradually through habitual spending, waste or neglected costs. Franklin’s point is therefore about vigilance and proportion. Small expenses should not be feared simply because they are small, but they should be noticed and judged in relation to their frequency and cumulative effect. The broader lesson is that maintaining financial stability often depends on controlling repeated minor losses before they grow into a larger problem.