Many of us overlook, or even ignore, the fact that our words have the power to destroy and, also, build up. We gossip. We criticize.
But our words can be used for the very opposite. To encourage. To compliment.
This quote says it all:
Don't mix your words with your mood, you can change your mood but you can't take back your words.
So, "Be careful with your words. Once they are said, they can only be forgiven, not forgotten."