The fact that an opinion has been widely held is no evidence whatever that it is not utterly absurd indeed in view of the silliness of the majority of mankind, a widespread belief is more likely to be foolish than sensible.

Summary

This quote highlights the fallacious nature of using popularity as an indicator of truth or rationality. It suggests that just because a belief or opinion is widely held does not necessarily make it reasonable or logical. In fact, given the propensity for people to hold foolish ideas, a widely held belief is more likely to be irrational rather than sensible. The quote challenges individuals to critically evaluate opinions and not be swayed solely by their popularity.