It is impossible to imagine a four-dimensional space. I personally find it hard enough to visualize a three-dimensional space!
Stephen HawkingThe universe is governed by science. But science tells us that we can't solve the equations, directly in the abstract.
Stephen HawkingIt is my view that the simplest explanation is there is no God. No one created the universe and no one directs our fate. This leads me to a profound realization. There is probably no heaven, and no afterlife either. We have this one life to appreciate the grand design of the universe, and for that, I am extremely grateful.
Stephen HawkingOne could say: "The boundary condition of the universe is that it has no boundary." The universe would be completely self-contained and not affected by anything outside itself. It would neither be created nor destroyed. It would just BE.
Stephen HawkingIf the rate of expansion one second after the Big Bang had been smaller by even one part in a hundred thousand million million, it would have recollapsed before it reached its present size. On the other hand, if it had been greater by a part in a million, the universe would have expanded too rapidly for stars and planets to form.
Stephen Hawking