Franklin suggests that a person’s desire to conceal an action can be a warning that the action itself may be wrong. If someone would feel ashamed, embarrassed or threatened if their conduct became known, that reaction may indicate a conflict between what they are doing and the standards they claim to follow.

The saying offers publicity as a simple test of integrity: consider whether an action would still seem acceptable if others knew about it. This does not mean that everything private is improper, since privacy can be legitimate and necessary. The point concerns conduct that depends on secrecy because disclosure would expose dishonesty, unfairness or hypocrisy. Franklin’s broader lesson is that ethical behaviour should not rely entirely on avoiding detection. Acting in ways that can withstand reasonable scrutiny helps align private choices with public principles and encourages personal accountability.