I missed the last episode of Cosmos, so I missed this invocation by host Neil deGrasse Tyson about the five simple rules of science: 

1. Question authority.  No idea is true just because someone says so, including me.
2. Think for yourself.  Question yourself.  Don't believe anything just because you want to.  Believing something doesn't make it so.
3. Test ideas by the evidence gained from observation and experiment.  If a favorite idea fails a well-designed test, it's wrong.  Get over it.
4. Follow the evidence, wherever it leads.  If you have no evidence, reserve judgment.
5. Remember, you could be wrong.  Even the best scientists have been wrong about some things.

That's some good stuff.  Every time I started watching an episode, I would feel reluctant to press play because I didn't feel like turning my brain on and having to think about something.  But every single time, I got completely sucked in and didn't mind having to think.  What a great TV series. #science