“While any software system introduces some kind of formalization of the world, HCI (like AI) deals with formalizations of human cognition and activity. These are the issues that have lay at the heart of philosophical debate for centuries. In some ways, it would be hard to imagine a more philosophical enterprise.”

“The only debatable issue, it seems to me, is whether it is more ridiculous to turn to experts in social theory for general well-confirmed propositions, or to the specialists in the great religions and philosophical systems for insights into fundamental human values.”

“Philosophy is a necessary activity because we, all of us, take a great number of things for granted, and many of these assumptions are of a philosophical character; we act on them in private life, in politics, in our work, and in every other sphere of our lives -- but while some of these assumptions are no doubt true, it is likely, that more are false and some are harmful. So the critical examination of our presuppositions -- which is a philosophical activity -- is morally as well as intellectually important.”

“We say that the most dangerous criminal now is the entirely lawless modern philosopher. Compared to him, burglars and bigamists are essentially moral men; my heart goes out to them. They accept the essential ideal of man; they merely seek it wrongly. Thieves respect property. They merely wish the property to become their property that they may more perfectly respect it. But philosophers dislike property as property; they wish to destroy the very idea of personal possession. Bigamists respect marriage, or they would not go through the highly ceremonial and even ritualistic formality of bigamy. But philosophers despise marriage as marriage. Murderers respect human life; they merely wish to attain a greater fulness of human life in themselves by the sacrifice of what seems to them to be lesser lives. But philosophers hate life itself, their own as much as other people's.”

“Even those novelists most commonly deemed “philosophical” have sometimes answered with an emphatic no. Iris Murdoch, the longtime Oxford philosopher and author of some two dozen novels treating highbrow themes like consciousness and morality, argued that philosophy and literature were contrary pursuits. Philosophy calls on the analytical mind to solve conceptual problems in an “austere, unselfish, candid” prose, she said in a BBC interview broadcast in 1978, while literature looks to the imagination to show us something “mysterious, ambiguous, particular” about the world. Any appearance of philosophical ideas in her own novels was an inconsequential reflection of what she happened to know. “If I knew about sailing ships I would put in sailing ships,” she said. “And in a way, as a novelist, I would rather know about sailing ships than about philosophy.”

“It remains to mention some of the ways in which people have spoken misleadingly of logical form. One of the commonest of these is to talk of 'the logical form' of a statement; as if a statement could never have more than one kind of formal power; as if statements could, in respect of their formal powers, be grouped in mutually exclusive classes, like animals at a zoo in respect of their species. But to say that a statement is of some one logical form is simply to point to a certain general class of, e.g., valid inferences, in which the statement can play a certain role. It is not to exclude the possibility of there being other general classes of valid inferences in which the statement can play a certain role”