The denunciation of the young is a necessary part of the hygiene of older people, and greatly assists the circulation of their blood.

Summary

This quote suggests that older people criticizing and disapproving of younger generations is essential for their own well-being. By finding fault in the youth, it keeps older individuals mentally active and engaged, allowing their thoughts and opinions to flow freely. Thus, this critique serves as a form of mental exercise or stimulation, metaphorically improving their blood circulation. The quote implies that this denunciation is not meant to harm or discourage the younger generation but rather as a beneficial process for the elders.