FTP, name this humanist and author of Encomium Moriae or The Praise of Folly.
In his tract on "Free Will" he changed the view that he had held much of his life.  His Adagia is a collection of Latin and Greek proverbs while his Education of a Christian Prince contains many biographical details.  Several writers drew on his Colloquia for fictional inspiration, particularly Scott in Anne of Geierstein and Charles Reade in The Cloister and the Hearth.  He stayed with Sir Thomas More in England, and it was More who suggested his most famous work.  FTP, name this humanist and author of Encomium Moriae or The Praise of Folly.
In his tract on "Free Will" he changed the view that he had held much of his life.  
Desiderius Erasmus