With ticket prices, do you ask yourself, why I'm paying $70 to see the arts? You say, "No, that's what the symphony is costing me."

To achieve this density of a neutron star at home, just cram a herd of 50 million elephants into the volume of a thimble.

As important as the civil rights movement was, I think what will rise to the top is that we left Earth in that time.

The methods and tools of science perennially breach barriers, granting me confidence that our epic march of insight into the operations of nature will continue without end.

I'm just recommending you find other things to base your spirituality on, rather than where science is yet to tread.

No one wants to die, and no one wants to die poor. These are the two fundamental truths that transcend culture, they transcend politics, they transcend economic cycles.

So much of what we understand comes from knowing what something is and what that something used to be, which allows us to figure out, or at least imagine, what happened in between.