Commenting on scientific and cultural developments through various media in his native region Flanders, Jean Paul Van Bendegem (b. 1953) has been a relatively well known philosopher for many years now. Although the entirety of his work is based on the very same humanistic principles, his ventures in logic and in the philosophy of mathematics have received less attention in these public fora. For this Festschrift at the age of sixty, some of Van Bendegem's most important intellectual associates in these areas (colleagues and friends, often both), address topics that have been central to their...