Here's a few of my favorites:
3) What liberals like should be mandatory and what they don't like should be banned: There's an almost instinctual form of fascism that runs through most liberals. It's not enough for liberals to love gay marriage; everyone must be forced to love gay marriage. It's not enough for liberals to be afraid of guns; guns have to be banned. It's not enough for liberals to want to use energy-saving light bulbs; incandescent light bulbs must be banned. It's not enough for liberals to make sure most speakers on campuses are left-wing; conservative speakers must be shouted down or blocked from speaking.
4) The past is always inferior to the present: Liberals tend to view traditions, policies, and morals of past generations as arbitrary designs put in place by less enlightened people. Because of this, liberals don't pay much attention to why traditions developed or wonder about possible ramifications of their social engineering. It’s like an architect ripping out the foundation of a house without questioning the consequences and if the living room falls in on itself as a result, he concludes that means he needs to make even more changes.
7) Intentions are much more important than results: Liberals decide what programs to support based on whether they make them feel good or bad about themselves, not because they work or don't work. A DDT ban that has killed millions is judged a success by liberals because it makes them feel as if they care about the environment. A government program that wastes billions and doesn't work is a stunning triumph to the Left if it has a compassionate sounding name. It would be easier to convince a liberal to support a program by calling it the “Saving Women And Puppies Bill" than showing that it would save 100,000 lives.
9) All solutions must be government-oriented: Liberals may not be as down on government as conservatives are, but on some level, even they recognize that it doesn't work very well. So, why are liberals so hell bent on centralizing as much power as possible in government? Simple, because they believe that they are better and smarter than everyone else by virtue of being liberals and centralized power gives them the opportunity to control more people's lives. There's nothing scarier to liberals than free people living their lives as they please without wanting or needing the government to nanny them.
