If Pizza sizes were given in area not diameter, you'd see instantly that a 7 inch is less than half the size of a 10 inch pie

Many people feel small because they're small and the universe is big, but I feel big.

You could do math early, but there are no brilliant 16-year-old novelists. They don't know the human condition yet.

The history of exploration has never been driven by exploration. But Columbus himself was a discoverer. So was Magellan. But the people who wrote checks were not. They had other motivations. And there's Columbus - he couldn't even get Italy to pay for his voyage so he has to go to Spain.

I love the smell of the universe in the morning.

You don't want to raise a kid in a culture where the kid who asks the most questions is annoying. You want a culture where the kid who asks the most questions gets awards and gets another piece of cake.

A scientist is just a kid who never grew up.