The actual atoms and molecules that make up my brain and body today are not the same ones that I was born with on September 8, 1954, a half-century ago this month.

Through no divine design or cosmic plan, we have inherited the mantle of life's caretaker on the earth, the only home we have ever known.

In comparison, Google is brilliant because it uses an algorithm that ranks Web pages by the number of links to them, with those links themselves valued by the number of links to their page of origin.

Play hard, work hard, love hard. . . .The bottom line for me is to live life to the fullest in the here-and-now instead of a hoped-for hereafter, and make every day count in some meaningful way and do something-no matter how small it is-to make the world a better place.

Are science and religion compatible? It's like, are science and plumbing compatible? They're just two different things.

In science, if an idea is not falsifiable, it is not that it is wrong, it is that we cannot determine if it is wrong, and thus it is not even wrong.

Science is not a thing. It's a verb. It's a way of thinking about things. It's a way of looking for natural explanations for all phenomena.