Literal translation :

3 – people – walking – must – have – me – teacher – thus

If 3 people are walking together at least one of them is good enough to be my teacher (in some subject)

I like this Proverb because it basically says that nobody has the monopoly on knowledge.  This is one of those Ancient Chinese Proverbs that is supposed to keep you humble I guess.

I often use it in my English class to remind the students to be quiet when other students are speaking.  Chinese students seem to have a problem of being quiet when other students are talking/practicing English in class.  For us westerners it’s incredibly rude, but for them it’s completely normal.  I guess when they are speaking and no one else is listening they don’t care ?  Anyways I use this Ancient Chinese Proverb in an effort to get them to listen to their fellow students speaking English because they can always learn from fellow students.  It isn’t only me that can help them with their English but they can also help each other.

Any situation wher people can all learn from one another and help each other increase in knowledge in some way this Proverb can be used.

I believe it was said by Confucious, or Kongzi, but I can’t be certain.  Feel free to correct me with a comment below.