Black scientist Benjamin Banneker demonstrates Black intelligence to Thomas Jefferson, 1791The source starts with Benjamin Banneker trying to demonstrate that despite skin color, black people can be just as smart as white people. In his letter, he points out that the principles of theDeclaration of Independence and the Bill of rights contradict each other as long as slavery still exists. Banneker also pointed out Jefferson’s Enlightenment principles, the idea that God createsall men equal. Since Jefferson believes in this, then why Black people are suffering abuse and mistreatment if all men are equal, black people are no less intelligent then white people. He then asks him to reconsider his statement over black people regarding their level of intelligence.