Except for children (who don't know enough not to ask the important questions), few of us spendtime wondering why nature is the way it is . . ..

Think of how many religions attempt to validate themselves with prophecy. Think of how many people rely on these prophecies, however vague, however u….

All colours are arbitrary..

If all the suns but ours collapsed tonight, how many lifetimes would it take us to realize that we were alone?.

Football is a thinly disguised re-enactment of hunting; we played it before we were human..

You could just as well say that an agnostic is a deeply religious person with at least a rudimentary knowledge of human fallibility..

It's sometimes easier to reject strong evidence than to admit that we've been wrong, this is information about ourselves worth having..

The universe forces those who live in it to understand it..

A millennium before Europeans were willing to divest themselves of the Biblical idea that the world was a few thousand years old, the Mayans were thi….

Who is more humble? The scientist who looks at the universe with an open mind and accepts whatever the universe has to teach us, or somebody who says….

He sought a way to preserve the past. John Hershel was one of the founders of a new form of time travel.... a means to capture light and memories. He….

It seems madness to say, 'We're worried that they're going to become addicted to marijuana' -- there's no evidence whatever that it's an addictive dr….

I hold that popularization of science is successful if, at first, it does no more than spark the sense of wonder..

I find science so much more fascinating than science fiction. It also has the advantage of being true..

The fact that someone says something doesn't mean it's true. Doesn't mean they're lying, but it doesn't mean it's true..

For me, the most ironic token of [the first human moon landing] is the plaque signed by President Richard M. Nixon that Apollo 11 took to the moon. I….

At a few hundred kilometers altitude, the Earth fills half your sky, and the band of blue that stretches from Mindanao to Bombay, which your eye enco….

The beauty of a living thing is not the atoms that go into it, but the way those atoms are put together. Information distilled over 4 billion years o….

Perhaps the depth of love can be calibrated by the number of different selves that are actively involved in a given relationship..

There are many hypotheses in physics of almost comparable brillance and elegance that have been rejected because they did not survive such a confront….

An organism at war with itself is doomed..