People who believe they are ignorant of nothing have neither looked for, nor stumbled upon, the boundary between what is known and unknown in the universe.
— Neil deGrasse Tyson, Astrophysics for People in a Hurry
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People who believe they are ignorant of nothing have neither looked for, nor stumbled upon, the boundary between what is known and unknown in the universe.
— Neil deGrasse Tyson, Astrophysics for People in a Hurry