STOP AND THINK – What goes into a mind comes out in a life. (Frequently read but author unknown)
A mind saturated with unhealthy thoughts and ideas will manifest itself in unpleasant ways. The acrostic GIGO (“garbage in, garbage out”) is used to describe the results of entering poor data into the computer and expecting something better to come out. In life, we must be careful to enter good thoughts and ideas into our minds to guarantee our good behavior.
Set your minds on things above, not on earthly things (Colossians 3:2).