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Universe Quotes

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Universe Quotes

“How ignorant we are! How ignorant everyone is! We can cut across only a small area of the appallingly expanding fields of knowledge. No human being can know more than a tiny fraction of the whole. It must have been satisfactory in ancient times when one's own land seemed to be the universe; when research studies, pamphlets, books did not issue in endless flow; when laboratories and scientists were not so rapidly pushing back frontiers of knowledge that the process of unlearning the old left you gasping for breath.”

“If it [the universe] was expanding fairly slowly, the force of gravity would cause it eventually to stop expanding and then to start contracting. However, if it was expanding at more than a certain critical rate, gravity would never be strong enough to stop it, and the universe would continue to expand forever.”