Thomas Jefferson took his political writings from John Locke. Locke said that we have natural rights to life, liberty, and property. Well Jefferson liked that but he changed it to life, liberty, and the pursuit of happiness. Where did he get this “pursuit of happiness” from? He got it from Epicurus. Indeed, Epicurus has influenced Jefferson so much that you can see the influence in Jefferson’s other writings like documents and letters. Jefferson has also said that if the world reads Epicurus, the world would be in a much better place.