We are just an advanced breed of monkeys on a minor planet o... - Stephen Hawking

"I hope I have helped to raise the profile of science and to show that physics is not a mystery but can be understood by ordinary people."

"I think computer viruses should count as life ... I think it says something about human nature that the only form of life we have created so far is purely destructive. We've created life in our own image."

"The human race is just a chemical scum on a moderate-sized planet, orbiting around a very average star in the outer suburb of one among a hundred billion galaxies. We are so insignificant that I can't believe the whole universe exists for our benefit. That would be like saying that you would disappear if I closed my eyes."

"I believe 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 that there probably is 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."

"The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."