Emanuel Swedenborg features on the Index Librorum Prohibitorum .
Project Galileo Other noteworthy intellectuals figures on the Index include Jean-Paul Sartre , Simone de Beauvoir , Voltaire , Denis Diderot , Victor Hugo , Jean-Jacques Rousseau , André Gide , Emanuel Swedenborg , Immanuel Kant , David Hume , René Descartes , Francis Bacon , John Milton , John Locke , Galileo Galilei , Blaise Pascal , and Hugo Grotius .
Index Librorum Prohibitorum