Summary
This quote emphasizes the importance of trust, privacy, and integrity among individuals. It suggests that it is improper and disrespectful for one person to invade another person's personal space or privacy, symbolized by the phrase "reading each others mail." It promotes the idea that true gentlemen, or individuals of good character, do not pry into others' personal affairs or violate their privacy without consent. It serves as a reminder to respect boundaries and uphold the principles of decency and privacy in interpersonal relationships.