"So remember to look up at the stars and not down at your feet. Try to make sense of what you see and hold on to that childlike wonder about what makes the universe exist."
"A million million million million (1 with twenty-four zeros after it) miles, the size of the observable universe."
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Source: Stephen W. Hawking (1990). “A Brief History of Time: From the Big Bang to Black Holes”, Bantam
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