True friendship is like sound health; the value of it is seldom known until it is lost.

Summary

This quote highlights the inherent value and importance of true friendship. Just like good health, a true friendship may often be taken for granted and its true value underestimated until it is lost. It emphasizes the idea that the worth and significance of genuine friendship might only be fully realized after it is no longer present in our lives. True friendship is invaluable and should be cherished and appreciated while it is still part of our existence.