To a physicist, we have the 'I' word, the I-word is 'impossible.' That's dangerous.

I'm not a science fiction writer, I'm a physicist.

كل ماهو غير مستحيل فهو ممكن

What we usually consider as impossible are simply engineering problems... there's no law of physics preventing them.

I'm a physicist, and we have something called Moore's Law, which says computer power doubles every 18 months. So every Christmas, we more or less assume that our toys and appliances are more or less twice as powerful as the previous Christmas.

I vowed to myself that when I grew up and became a theoretical physicist, in addition to doing research, I would write books that I would have liked to have read as a child. So whenever I write, I imagine myself, as a youth, reading my books, being thrilled by the incredible advances being made in physics and science.