In the past 10,000 years, humans have devised roughly 100,000 religions based on roughly 2,500 gods. So the only difference between myself and the believers is that I am skeptical of 2,500 gods whereas they are skeptical of 2,499 gods. We're only one God away from total agreement.

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.

What can be more soul shaking than peering through a 100-inch telescope at a distant galaxy, holding a 100-million-year-old fossil or a 500,000-year-old stone tool in one's hand, standing before the immense chasm of space and time that is the Grand Canyon, or listening to a scientist who gazed upon the face of the universe's creation and did not blink?

Darwin matters because evolution matters. Evolution matters because science matters. Science matters because it is the preeminent story of our age, an epic saga about who we are, where we came from and where we are going.

Mammals are sentient beings that want to live and are afraid to die. Evolution vouchsafed us all with an instinct to survive, reproduce and flourish.

Because of the complexity of the problem, environmental skepticism was once tenable. No longer. It is time to flip from skepticism to activism.

We know evolution happened not because of transitional fossils such as A. natans but because of the convergence of evidence from such diverse fields as geology, paleontology, biogeography, comparative anatomy and physiology, molecular biology, genetics, and many more.