Neil deGrasse Tyson Replies to Lincoln's Gettysburg Address

In April 2015, the astrophysicist Neil deGrasse Tyson accepted the National Academy of Science's most prestigious award. His brilliant acceptance speech makes the argument for ensuring that science plays a big role in policymaking. Inspired by the short and eloquent Gettysburg Address, Dr. Tyson makes his case in just 272 words.

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