The role of gender in society is the most complicated thing I’ve ever spent a lot of time learning about, and I’ve spent a lot of time learning about quantum mechanics.

I've always thought that one of the the great thing about physics is that you can add more digits to any number and see what happens and nobody can stop you.

You don't become great by trying to be great. You become great by wanting to do something, and then doing it so hard that you become great in the process.

The role of gender in society is the most complicated thing I’ve ever spent a lot of time learning about, and I’ve spent a lot of time learning about quantum mechanics.

The universe is probably littered with the one-planet graves of cultures which made the sensible economic decision that there's no good reason to go into space-each discovered, studied, and remembered by the ones who made the irrational decision.

Take wrong turns. Talk to strangers. Open unmarked doors. And if you see a group of people in a field, go find out what they are doing. Do things without always knowing how they'll turn out.

News networks giving a greater voice to viewers because the social web is so popular are like a chef on the Titanic who, seeing the looming iceberg and fleeing customers, figures ice is the future and starts making snow cones.