A significant body of work from a 20th Century philosopher Remarks on the Philosophy of Psychology is an English translation of Ludwig Wittgenstein's writings on topics such as sensation and expectation. Wittgenstein was an Austrian-British philosopher who taught at the University of Cambridge. Considered one of the most important philosophers of the 20th century, he worked in the areas of logic and the philosophy of mathematics. This notable work features writings compiled by the philosopher between 1946 and 1949.