I have to say to myself that some birds aren't very close. Their feathers are just too bright. When they fly away, you know it's a sin to lock them up, and you'll be inspired by them. Still, the place you live in is that much more drab and empty that they're gone. I think I really miss my friends.

Innovation isn't about reinventing the wheel; it's about making the wheel roll smoother and faster.

We need to design policies that work with human psychology, not against it.

一个好的数学家是懒惰的，但是以一种建设性的方式。