Temper never mellows with age, and a sharp tongue is the only edged tool that grows keener with constant use.

Summary

This quote suggests that as someone grows older, their temper does not become more mellow but rather remains the same or becomes worse. It emphasizes that a harsh and critical way of speaking is like a sharp tool that becomes even sharper with frequent use. In other words, constant use of a sharp tongue makes one's ability to criticize and hurt others even more potent over time. The quote serves as a reminder to be mindful of our words and to endeavor to speak kindly and constructively, especially as we age.