"We have become a sloppy bunch of people. We say things we don't mean. We make promises we don't keep. "I'll call you." "Let's get together." We know we won't. On the Human Interaction Stock Exchange, our words have lost almost all their value. And the spiral continues, as we now don't even expect people to keep their word; in fact we might even be embarrassed to point out to the dirty liar that they never did what they said they'd do. So if a guy you're dating doesn't call when he says he's doing to, why should that be such a big deal? Because you should be dating a man who's at least as good as his word."
— Greg Behrendt

"'Busy' is another word for 'asshole'. 'Asshole' is another word for the guy you're dating."
— Greg Behrendt (He's Just Not That Into You (The Newly Expanded Edition): The No-Excuses Truth to Understanding Guys)

"" Here's something else to think about: calling when you say you're going to is the very first brick in the house you are building of love and trust. If he can't lay this one stupid brick down, you ain't never gonna have a house baby, and it's cold outside.""
— Greg Behrendt (He's Just Not That Into You (The Newly Expanded Edition): The No-Excuses Truth to Understanding Guys)