"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."
"Time and space are finite in extent, but they don't have any boundary or edge. They would be like the surface of the earth, but with two more dimensions."
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Source: Stephen W. Hawking (1993). “Black Holes and Baby Universes and Other Essays”, Bantam
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