What are you doing? Why are you concerning yourself with the meaning of meaning?

We should not measure our space-faring era by where footprints have been laid.... We should measure our era by how many people take no notice at all. A legacy rises to become culture only when its elements are so common that they no longer attract comment.

Follow the evidence wherever it leads, and question everything.

There are as many atoms in each molecule of your DNA as there are stars in the typical galaxy. This is true for dogs, and bears, and every living thing. We are, each of us, a little universe.

There are no articles any more that dream about the cities of tomorrow.

We're quite happy with our Big Bang description of cosmic origins. But actually, the Big Bang accounts for what happened only after the beginning. The beginning itself, and especially what happened before, remains the biggest mystery of all.

If you want a nation to have space exploration ambitions, you've got to send humans.