Stephen Hawking

Imaginary time is a new dimension, at right angles to ordinary, real time.

There is nothing bigger or older than the universe.

One can't predict the weather more than a few days in advance.

We should remember that there are nations which meet more than 30 to 60% of their power requirements through the nuclear power system.

At last we've seen the first installment of Joss Whedon's new web series, 'Dr. Horrible's Sing-Along Blog,' and it's sweeter than we'd ever imagined.

I'm interested in the psychological exploration of human nature, and it just happens to come in the form of film-making.