You kind of realize that violence can be a self-defeating strategy, because it just gives the other guy an incentive to attack you back in revenge. Stephen Pinker
Procrastinators tend to be more stressed than other people—even before they start procrastinating. According to a recent study, that's possibly because they have self-defeating thoughts like, "I'm simply too stupid to benefit from more studying, so I'll just hang out on Facebook." Shana Lebowitz