Josiah Royce was a leading American proponent of absolute idealism. He was one of the first four recipients of a Johns Hopkins doctorate, in 1878.
Charles Sanders Peirce (1839–1914)
Known as the “founder of American pragmatism,” Charles Sanders Peirce was a lecturer in logic at Johns Hopkins from 1879-1884.
John Dewey was a leading philosophical pragmatist and educational theorist whose ideas have been influential in education and social reform. He received his PhD from Johns Hopkins in 1884.
An American philosopher best known for his work on the history of ideas and theory of knowledge, Arthur Lovejoy was a professor of philosophy at Johns Hopkins from 1910–1938. His most famous work is The Great Chain of Being: A Study of the History of an Idea.