Today will still yearn to know why we are here and where we came from. Humanity's deepest desire for knowledge is justification enough for our contin… - Stephen Hawking

We are all different — but we share the same human spirit. Perhaps it's human nature that we adapt — and survive.

A well-known scientist (some say it was Bertrand Russell) once gave a public lecture on astronomy. He described how the earth orbits around the sun and how the sun, in turn, orbits around the center of a vast collection of stars called our galaxy. At the end of the lecture, a little old lady at the back of the room got up and said: “What you have told us is rubbish. The world is really a flat plate supported on the back of a giant tortoise.” The scientist gave a superior smile before replying, “What is the tortoise standing on?” “You’re very clever, young man, very clever,” said the old lady. “But it’s turtles all the way down!

If we find the answer to that (why the universe exists), it would be the ultimate triumph of human reason. For then we would know the mind of God.