Proverbs 18:2 (NIV)
A fool finds no pleasure in understanding but delights in airing his own opinions.
I hope that I am not seen as a fool. I do find pleasure in understanding God's word and I am not as much concerned with my own opinions (I do have some however.) Of course opinions can be interesting but anything we say should be worthy of another person's hearing.
Ephesians 4:29 (NIV)
Do not let any unwholesome talk come out of your mouths, but only what is helpful for building others up according to their needs, that it may benefit those who listen.