all cats are gray in the dark

used to suggest that when we lack knowledge or understanding about a particular subject, it can be hard to discern the differences between similar things or people

The origin of the proverb "all cats are gray in the dark" is believed to be rooted in European folklore and has been used in various cultures. It highlights the idea that, in the absence of proper knowledge, everything may appear the same, even if subtle differences exist. It encourages the idea that judgment or comparison requires a clear perspective or adequate information, and without it, important distinctions may go unnoticed.