The following classification of mental properties comes from lecture 17 of the Amsterdam lectures. It summarizes the results of the conceptual analyses published by UTP until 1973. After 1973 he didn’t change in a fundamental…
The following is an extract from a mail sent by Ullin Place at the 19th of October 1999. The subject of the mail is Re: Nachlass. He knew at that time that he was terminally…
The purpose of this site is to make publicly available all the papers that UTP wrote in the fields of philosophy and psychology. After his death the files on his IBM PC were on his…
At the end of his life UTP wrote an essay which was intended as his intellectual autobiography. He describes the influence of his father and of his mother, the role that religion and mysticism played…
I know that my English is not perfect even though my maternal language is English (which is by the way not the mother tongue of my Dutch mother) and I used to speak English with…