A Proverb: Choose Your Students Wisely

As I read the following Proverb yesterday I knew I had to share some thoughts on it.

Here's the passage:

"Anyone who rebukes a mocker will get an insult in return. Anyone who corrects the wicked will get hurt. So don't bother correcting mockers; they will only hate you. But correct the wise, and they will love you. Instruct the wise, and they will be even wiser. Teach the righteous, and they will learn even more."
Proverbs 9:7-9 NLT

A couple of thoughts:

• This passage implies that there are only two types of people:  the mockers and the wise.
• This passage implies that I'm instructing/supposed to be instructing people how to live.
• What "mockers" am I wasting my time and wounds on? Because I can only take so many wounds before those wounds start killing me
• If I'm going to "correct" anybody, it should be those who are already "wise" because it's a better return on investment. (I'd rather get love than wounds back for my instruction efforts)
•  I think this passage speaks against those Christians who dedicate their lives to boycotting companies like Disney or public schools. Again, you might be wasting your efforts and wounds on the wrong people!

What do you think?