James Robert Brown is a Canadian Philosopher of Science. He is a Professor of philosophy at the University of Toronto. In the philosophy of mathematics, he has advocated mathematical Platonism, and in the philosophy of science he has defended scientific realism mostly against anti-realist views associated with social constructivism. He is largely known for his pioneering writing about thought experiments in science and in general. In 2007, he was made a Fellow of the Royal Society of Canada.Homepage: http://homes.chass.utoronto.ca/~jrbrown/