Ayn Rand, Freedom (n.): To ask nothing. To expect nothing. To depend on nothing.

Robert Louis Stevenson, The Strange Case of Dr. Jekyll and Mr. Hyde

Mark Twain, American writer, humorist, entrepreneur, publisher, and lecturer.

John Henry Newman, The Idea of a University Defined and Illustrated

John Locke, English philosopher and physician, widely regarded as one of the most influential of Enlightenment thinkers