John Locke and the Enlightenment are the right answer.
John Locke was an English Philosopher of the Enlightenment age. He gave emphasis on the development of liberalism. He is well known for his theory of division of powers and for his views about the property as the source for prosperity. He was an important link in the development of modern executive and parliamentary government in the United States.
You could try to email them or at least make sure to give credit to the artist so that you wont need to waste money on getting fined by them by using their song.
