- 1328, Quaestiones de VI Principiis; Quaestiones super libros [I-II] De anima; Brit. Philosoph
1854 - 1932, Brit. Maler; Philosoph; Schriftsteller
1934 - 2008, Prof. of Hist. of the Exact Sciences and dean of philos. faculty at Univ. of Groningen; Neth.; 1977-; formerly at Oxford; member of Royal Neth. Acad. of Arts and Sci.and Academia Leopoldina; fellow of Brit. Acad.; Brit. Mathematiker u. Philosoph