Then we shall... be able to take part in the discussion of the question of why it is that we and the universe exist. If we find the answer to that, it would be the ultimate triumph of human reason - for then we would know the mind of God.

My first popular book, 'A Brief History of Time,' aroused a great deal of interest, but many found it difficult to understand.

The rate of progress is so rapid that what one learns at school or university is always a bit out of date. Only a few people can keep up with the rapidly advancing frontier of knowledge, and they have to devote their whole time to it and specialize in a small area. The rest of the population has little idea of the advances that are being made or the excitement they are generating.

What I meant by 'we would know the mind of God' is, we would know everything that God would know, if there were a God. Which there isn't. I'm an atheist.

The development of full artificial intelligence could spell the end of the human race.

If one is physically disabled, one cannot afford to be psychologically disabled as well.

Eternity is a long time, especially towards the end.