Nothing is a thing: it's nothing. So I can imagine a place where there's not even nothing.

The greatest teachers are the ones that turn a B student into an A student, or a failing student into a B student.

With automatic spell checkers running unleashed over what we compose, our era is that of correctly spelled typos.

Imagination alone is not enough, because the reality of nature is far more wondrous than anything we can imagine

For the film to 'earn' the right to be criticized on a scientific level is a high compliment indeed.

The universe is almost 14 billion years old, and, wow! Life had no problem starting here on Earth! I think it would be inexcusably egocentric of us to suggest that we're alone in the universe.

Perhaps we’ve never been visited by aliens because they have looked upon earth and decided there’s no sign of intelligent life.