The tongue is the only tool that gets sharper with use.

Summary

This quote suggests that the more we use our ability to speak and communicate effectively, the more skilled we become at doing so. It implies that with practice, our communication skills can improve and our words can grow more persuasive, impactful, or sharp. Just like a tool that becomes sharper and more effective with repeated use, our tongues, which represent language and communication, can also hone their effectiveness through continuous practice and usage.