“Leave the presence of a fool, for there you do not meet words of knowledge.”
Who makes up your inner circle? Who is it that you listen to for guidance and wisdom? Be wise my friend with who you listen to. If you need to, leave some people behind. Surround yourself with people who are wise. Keep the circle tight.
A proverb a day will make us wiser. If you need some more assistance when it comes to your friends, then I suggest you read the entire book.