Some morning while your eating breakfast and you need something new to think about, though, you might want to ponder the fact that you see your kids across the table not as they are but as they once were, about three nanoseconds ago.

If the only time you think of me as a scientist is during Black History Month, then I must not be doing my job as a scientist.

I lose sleep at night wondering whether we are intelligent enough to figure out the universe. I don't know.

I love the future we might invent for ourselves that I have not yet dreamt of.

If an alien lands on your front lawn and extends an appendage as a gesture of greeting, before you get friendly, toss it an eightball. If the appendage explodes, then the alien was probably made of antimatter. If not, then you can proceed to take it to your leader.

Claiming there is no other life in the universe is like scooping up some water, looking at the cup and claiming there are no whales in the ocean.

I don't need my name anywhere.