“The way of a fool is right in his own eyes, But he who heeds counsel is wise” (Proverbs 12:15).
“A word to the wise” is a well-known expression that many like to quote but few like to heed. Some people appear to have the idea that they are always right, regardless of what the situation is. Solomon speaks to that attitude in this verse.
The problem is that we don’t always know what we don’t know; consequently, we can make many embarrassing mistakes when we fail to seek advice from others and then to listen to it. Solomon categorizes this kind of person as a “fool.”
The lesson is that we should always be open to what other people might teach us. Those not so close to a situation just may have a more reasonable perspective than we do when we are in the middle of it. If we are closed minded, we may end up in trouble or at least making ourselves look foolish.