Wanting to do one thing can require that you take on other interests.

When your reasons for believing something are justified ad hoc, you are left susceptible to further discoveries undermining the rationale for that belief.

America 2012: The Learning Channel has HoneyBooBoo, History Channel has PawnStars: and the Science Channel has PumpkinChunkin

Pretending to know everything closes the door to finding out what's really there.

I love being wrong because that means in that instant, I learned something new that day.

Deep down within anyone there's a flame that maybe had gone dormant that can be fanned or ignited in case it had blown out. This is the flame of curiosity, the flame of wonder, of awe, of all the things that make you want to learn something more tomorrow than you knew today.

I knew Pluto was popular among elementary schoolkids, but I had no idea they would mobilize into a 'Save Pluto' campaign. I now have a drawer full of hate letters from hundreds of elementary schoolchildren (with supportive cover letters from their science teachers) pleading with me to reverse my stance on Pluto. The file includes a photograph of the entire third grade of a school posing on their front steps and holding up a banner proclaiming, 'Dr. Tyson - Pluto is a Planet!'