“If you’re always finding fault, complaining about the traffic, critical of your spouse, and focused on what’s not working out, may I suggest that your window is dirty. The problem is not external; it’s internal. You’re looking through a tainted filter. At some point you need to look in the mirror and say, “Maybe I’m the one who needs to change. If I’m always critical, maybe I’ve developed a habit of seeing the negative rather than the positive. Maybe I’ve trained myself to be cynical and sarcastic rather than kind and loving. Maybe my filter is dirty.”