"In Praise of Ambiguity" presents a discourse about the seriousness of play. Erasmus and Huizinga are its main characters, their books In Praise of Folly (1511) and Homo Ludens (1938) its main subject. It treats those books as contemporaries and asks what they still have to say to us. The main theme of both books is the contrast between two attitudes of life: the conviction that each subject has two or more sides as opposed to the certainty that there is always only one side to the matter. It...

This is the story of four centuries during which Leiden University shared the fate of the Netherlands, and became representative of the most important advances in academic research. At the same time it is a declaration of adoration to one of Europe's most leading international universities.

On 28 December 1574, William of Orange wrote a letter to the States General of the provinces of Holland and Zeeland from the town of Middelburg. He came to the representatives with a proposal, a dream actu...