Rationalism is the expression of what it means to be most human - to seek to understand the world and the universe beyond one's immediate concerns in the name of the human race as a whole. RA member Nina Power
David Wootton is Anniversary Professor of History, University of York. He is author of Bad Medicine: Doctors Doing Harm Since Hippocrates (Oxford University Press, 2007) and most recently Galileo: Watcher of the Skies (Yale University Press, 2011)